hello, i'm don lemon. we have new warnings on possible terror threats inside the u.s., including cyber attacks on americans. the syria crisis prompted u.s. officials to beef up security and focus on investigations related to syria and the region. plus this, the secretary of state john kerry revealing new evidence on syria's alleged chemical weapons attacks. >> it has tested positive for signatures of sarin. so each day that goes by, this case is even stronger. >> we'll break down what signatures of sarin means straight ahead. and this, saudi arabia backing a possible u.s. military strike in syria. the saudi foreign minister says sayria's regime crossed all lines. we'll talk to experts about saudi arabia's role in this crisis. we have new information coming onto cnn about the development of deployment of u.s. military assets in case of a potential military strike

against syria. pentagon correspondent barbara starr joins me by phone. >> reporter: i don't think it will be a big surprise to people. now that a strike appears to be days off, the pentagon will look at the fire warships with the tomahawk missiles and figure out if they need to swap out fresh ships, fresh crews. they can't leave everybody just sitting there forever because a lot of these ships may be due to return to their home port. people are due back to their families. officials tell us that it is routine. they are going to look at it all, make decisions in the next few days and that it will not affect military operations. they've already told the president that everybody will be ready to go, missiles will be targeted and everything will be ready at all times for him. that doesn't mean that they may not swap some ships out and put

in some fresh crews. >> barbara starr with the new information from the pentagon. thank you. appreciate that. in syria, military forces loyal to president assad's regime are reportedly moving into residential areas and schools. syrian opposition group says the regime is transferring troops and ammunition from military sites to areas where civilians live in preparation for possible u.s. strikes. this video reportedly shows clashes between opposition and government troops yesterday in a suburb near damascus. a british reporter in damascus has more on possible troop movement. >> there are reports within the last few hours that damascus international airport, which was thought to possibly be one of the targets, that radar systems were being moved from that airport. that's today. that there had been a lot of digging and drilling overnight. that a republican guard complex

or building or barracks at that airport was deserted and there are reports the syrian army is moving equipment, scud missiles, tanks, everything down to computer and furniture, moving those away. >> congress is eight days away from starting its debate on a possible u.s. military strike on syria. that delay will give syria's troops more time to prepare. want to bring in cnn military analyst lieutenant colonel rick francona in washington. is the u.s. showing its hand too soon? >> yes. i think so. we've been telegraphing a long time we planned to do this. it's very helpful to the syrians to be able to plan what they're going to do in the way of defense or reaction. they know nothing is going to happen now for ten days or eight days now. they are going to have time to move as that report just mentioned. they are moving things out of where we think they are, where we know they are to places that we hope we can't detect.

we have very good capabilities to monitor all of this. you can't see everything all the time. the chance we are going to catch every move of every high value asset is pretty low. that said, with the crew's missiles on the ships, they have to go after a specific set of targets because these missiles are not going to be able to hit hardened facilities, hardens bunkers. these are high explosive war heads. they'll do a lot of damage, but they'll use radar sites, air fields, hangars, that sort of thing, command and control facilities, excellent for that. they are looking at those target sets. mobile things are going to be much more difficult now. >> colonel, i want to get your reaction to what our pentagon correspondent barbara starr just reported. the u.s. considering swapping out destroyers near syria. what do you make of that? is that normal procedure? >> i think so. it gives the navy ten days or whatever time they have before the execute order is given to bring in exactly what mick of

weapons they want. if they rotate those destroyers out, those can carry 90 tomahawks, but during peace time deployments, they normally carry only about half of that. they may bring in fresh ships with full complements of missiles. they may bring in a different class of vessel with different capabilities. this gives the navy a little breathing time, too. it gives us a chance to make sure we've got the right weapons to do what the president wants them to do. >> if you're going to do this, would you want to boost military advantage? should the president have gone to congress before? the timing seems weird. you said we are showing our hand too soon. you want to boost military advantage here. what timingwise could have been done better, in your estimation? >> well, it could have been done much quieter. if the president was going to consult with congress, he could have done that in a quieter way, make phone calls and have all the ducks lined up before making an announcement, i'm

contemplating military action against syria. by making the announcement yesterday, he has taken a load off the syrian military. they have time now. right after that happened, we saw syrian troops moving, not only hiding things, but going on the offensive. they know they've got time to consolidate their gains. i doubt if we'll see more chemical weapons used. they know that is a red line. they know that is a trigger point for the united states. they are going to try and do what they can in this grace period they have. >> stranger things have happened though. you never know. never know. thank you, lieutenant colonel rick francona, appreciate it. >> sure. two powerful republican senators will discuss syria with president obama tomorrow at the white house. senators john mccain and lindsey graham serve on the armed services committee. mccain wants to know whether he has a plan to take out syria's regime? >> i want to talk to the president and find out whether there is a plan and strategy.

i want to find out whether this is just a pin prick that somehow bashir assad can trump that he defeated the united states of america. i will say that if congress overrules a decision of the president of the united states on an issue of national security, that could set a catastrophic precedent in the future. it would be very dangerous precedent to be setting. >> mccain has pushed for strong u.s. military action in syria. members of congress got a classified briefing today on capitol hill getting a look at u.s. intelligence on syria. chief congressional correspondent dana bash is back standing by in washington. i hear there is some skepticism in the room among those law makers. tell us about it. >> reporter: that is an understatement. obviously, we weren't in the room. it was a classified briefing, but it lasted a long time. to a person republican or democrat, nobody denied the fact there were a lot of questions, a lot of skepticism.

many people came out saying they, if they had to vote today they would vote no. one of the reasons is because there's a lot of concern about the way the administration wrote the language, legislative language of the authorization they want congress to pass. they say the president says he wants this to be a narrow military action but the legislation he sent up is broad in scope. they want to change that. that is a very big issue. listen to what jerry connolly of virginia said. >> i believe there will be some tweaks to the resolution. i think that's a safe assumption. >> what needs to be changed? >> again, there is wording in there, for example, that basically gives the president pretty broad authority as he determines. i don't believe that there is a great appetite, certainly speaking for myself and i know a lot of my colleagues, to entertain language that broad. >> reporter: so that's the issue with the actual legislative

language which is crucial. seems pretty clear that is going to change. beyond that, never mine what's written in this legislation. there are a lot of members of congress who say that they actually believe the intelligence that they saw, that bashir al assad is responsible for using chemical weapons against his own people, but what they don't know and is not sure is the white house's real plans are and the pentagon's as well in terms of military strikes. more importantly for many of them, what happens after these military strikes? then where are we and what are the unattended consequences? very interesting to hear the skepticism and hear in this room, members said that the hangover, the 800 pound gorilla in the room was the iraq war. members of congress not wanting to make what many of them believe was the mistake they made last time again. that's why we are hearing a lot of this. >> the iraq war is in the rear view mirror when it came to

voting on it, but not that far behind. thank you, dana. >>. >> earlier i spoke with david gergen. he believes the president has a lot of work selling the idea of an attack of syria on a war-weary american public. >> the way this is shaping up right now, i will tell you, the president doesn't have the congress nor public opinion, and there are going to be a growing number of people to put pressure on him. i've got to sell the country to sell the congress. they are going to push him to make the case. i think we are going to see more of the president on primetime before this fight is over because he does need to move the needle and public opinion in order to have a better shot. i think he'll get it, but he's got a lot of work to do. >> do you think -- you said get the shot, do you think he will get approval? >> i think it's likely he'll get approval. members of his party have to realize defeating him on this

could cripple him as commander in chief. there will be a lot of democrats like nancy pelosi that will want to vote for him. then there are republicans who believe in the substance of it. there are obvious splits. i do think though there is this question that has come up because of the way this has been done. this sense, we all heard the hoof beats last week. you and i assumed we would be at war by now or firing missiles by now. to have this about-face suddenly, unexpectedly, has given increased sense that this administration is winging it as it goes. maybe it doesn't have a firm handle on the wheel. the president has to be also, along with john kerry who did well today on television, they have to be clear, decisive, clean in their arguments in order to get this done, to give us real sense we know what we're doing, we know what the consequences of this may be. we have them in hand.

we thought about this. this is well thought through. they haven't convinced people yet. >> david gergen. today the world is talking about that interview of john kerry on cnn talking about the sarin gas signatures. we have that sometimes-heated interview next. why are chemical weapons a red line what makes them so bad?

nascar is about excitement. but tracking all the action and hearing everything from our marketing partners, the media and millions of fans on social media can be a challenge. that's why we partnered with hp to build the new nascar fan and media engagement center. hp's technology helps us turn millions of tweets, posts and stories into real-time business insights that help nascar win with our fans. you may be muddling through allergies.

try zyrtec® for powerful allergy relief. and zyrtec® is different than claritin® because it starts working faster on the first day you take it. zyrtec® love the air.

conservatives and liberals have the responsibility to the country to advance our views.

while president obama waits for congress to return to seek their approval for a strike on syria, many have been focused today on secretary of state john kerry's announcement that signatures of sarin were found in an attack site in syria. gloria borger talked to kerry about the discovery. >> we don't contemplate that congress is going to vote no, gloria. i believe this case is powerful and grows more powerful by the day. i can share with you today that blood and hair samples that have come to us through an appropriate chain of custody from east damascus, from

conspiracy responders has tested positive for signatures of sarin. each day that goes by, each case is stronger. we know that the regime ordered this attack. they prepared for it. we know where the rockets came from. we know where they landed. we know the damage that was done afterwards. we've seen the horrific scenes all over the social media and we have evidence of it in other ways, and we know that the regime tried to cover up afterwards. the case is an overwhelming case, but the president really felt very strongly that the congress of the united states weighing in makes our nation stronger in whatever action we take. >> doesn't it worry you you have put this heavy responsibility on a congress notoriously paralyzed and divided? >> we have confidence there are good people in the congress of the united states. i know they've been politically, it's been difficult, but this is

a matter of national security. it's a matter of the credibility of the united states of america. it's a matter of upholding the interests of our allies and friends in the region. jordan, which is threatened by what is happening, israel, turkey, lebanon, all of which, as i said the other day are just a stiff breeze away from chemical weapons being used. there are huge interests here. in the long term, gloria, what we may or may not have to do if we cannot find a peaceful resolution with iran. what we need to do with north korea, all of these things are part of a continuum of decision-making that is made in foreign policy. we believe the congress of the united states will recognize that responsibility and do what is right. >> but mr. secretary, the head of the council on foreign relations, for example, says that in fact president obama has gone, these are his words, from leading from behind to not

leading by going to congress. he says that it raises doubts about the united states' reliability and determination. can i get your response on that? >> absolutely, of course you can. the fact is that the president of the united states is leading and he's leading very powerfully and leading in the right way. if he didn't do this, i can hear all of the critics saying why didn't the president go to congress? why didn't the president, he could have asked, he had time to ask. it didn't make a difference -- >> then they could ask why didn't he go sooner? >> the president made his decision first. he announced his decision. his decision is that he believes the united states of america should take military action to deter assad from using these weapons and to degrade his capacity from doing so. that's the president's decision. >> no matter what congress does. >> he has the right to do that

no matter what congress does. that is his right and he asserted that in his comments yesterday. but the president believes, and i hope we will prove to the world, that we are stronger as a nation, our democracy is stronger when we respect the rights of the congress to also weigh in on this. and since it is not an emergency overnight as we saw in a place like libya where people were about to be slaughtered, since we have the right to strike any time if assad is foolish enough to engage in yet another attack, we believe that it is important before this takes place to have the full investment of the american people and of the congress. >> well, what are you telling the syrian opposition now? they are clearly counting on military action sooner rather than later. now it's been delayed. >> sometimes the wheels of democracy require us to take an extra day or two to provide the legitimacy that our founding fathers contemplated in actions

we take. i talked yesterday with the president of the syrian opposition. i believe he understands that america intends to act, that we are going to continue to support the opposition, that we may even as a result of this be able to provide greater support to the opposition and do a better job of helping the opposition to be able to continue to fight against the assad regime. i think they will be stronger, we will be stronger in the end. it's amazing to me to see people suddenly standing up and taking such affront at the notion that congress ought to weigh in. i can hear the complaints that would have taken place if the president proceeded unilaterally and people said why didn't he take the time to consult? >> mr. secretary, it seems -- i think the questions are raised because it seems that from the onset of this over the last couple of weeks, it seems that the president was poised to take

action sooner rather than later. you came out and said it matters if nothing is done. >> it does matter. none of that has changed. >> why didn't he decide to go to congress immediately if it was so constitutionally important? >> because the president needed to gather the evidence and have, ask me and others to make judgments, and ultimately, to make the case to the american people. >> did he conclude he didn't have enough political support in the country? >> absolutely not. the president of the united states asserted yesterday, you know, that he has the right, and i believe he has that right. but the president made, i think, a very courageous decision. just because he disappointed some people who thought, who thought, without any basis, that he was setting up to go take a strike, doesn't mean that he didn't reserve the right to make the judgment that he made. no decision is made by a president until the decision is

made. and this president did not make the decision until he finally came to the conclusion that he wanted to take this to congress in order to have the greater strength of the american people speaking as a whole. i think, i personally believe at a time when the institutions of governance are being doubted by many people, i think this is a very courageous decision. i think it is a big presidential decision. no one should misinterpret it. particularly assad or the opposition. >> but it's also risky, mr. secretary, isn't it? i mean, the risk is if congress were, and i know you don't expect this, but if congress were to vote no and then the president were to strike, wouldn't that set up a constitutional crisis? >> the president has the right, and he has asserted that right that he could do what's necessary to protect the

national security of the united states at any point in time. the president believes that we are stronger as a nation when we act together. the branches of government that are designated with powers with respect to foreign policy. so the president has made his decision, and he courageously went out yesterday and announced his decision to the nation and the world. he believes that this outrageous attack by assad merits the united states joining with others to stand up and defend the international norm with respect to the prohibition of the use of chemical weapons. the president announced that decision and now he has asked the congress of the united states, representing the american people, to join in with him in that decision. >> mr. secretary -- >> we are stronger as a nation when that happens. >> let me ask you about our coalition. when you were running for president in 2004, you said that

in iraq we should not have relied on what you called a coalition of the few. isn't that what we have here right now? >> i think we have a coalition more than a few. this is a situation that is going to grow as the evidence comes out. that's another reason why the president believes there is a value in going through this process. i talked with a number of nations who have offered to be helpful. no decisions have been made about what shape that will take, but i believe that there are many, the arab league has already spoken out. voices as far away as japan, new zealand, australia, other places have spoken out. i think the world takes enormous affront at this incredible abuse of power, this attack on decency and incredible crime against humanity. i think voices will grow over the next days as people see the

evidence. that evidence is becoming more powerful every day. as i mentioned to you, we now have the additional evidence of the signatures of sarin gas from the first responders. >> is this from the united nations? >> no. this is independent. this came to the united states. it's independent, but it is confirmation of the signatures of sarin. so the case gets stronger by the day. i believe the case for action will grow stronger by the day. >> so how strong is the case? that secretary kerry and president obama are laying out? we'll talk about the political battle after this. [ male announcer ] when you have sinus pressure and pain, you feel...squeezed. congested. beat down. crushed. as if the weight of the world is resting on your face. but sudafed gives you maximum strength sinus pressure and pain relief. so you feel free. liberated. released. decongested. open for business. [ inhales, exhales ]

[ male announcer ] powerful sinus relief from the #1 pharmacist recommended brand. sudafed. open up. from the #1 pharmacist recommended brand. uh-oguess what day it is!is?? huh...anybody? julie! hey...guess what day it is?? ah come on, i know you can hear me. mike mike mike mike mike... what day is it mike? ha ha ha ha ha ha! leslie, guess what today is? it's hump day. whoot whoot! ronny, how happy are folks who save hundreds of dollars switching to geico?

i'd say happier than a camel on wednesday. hump day!!! yay!! get happy. get geico. fifteen minutes could save you fifteen percent or more.

so we just saw the john kerry interview with cnn in its entirety a moment ago. how did he do? we've got anna navarro republican strategist, l.z. granderson, cnn commentator. they're back. you guys are blowing up on twitter. anna, we'll start with you this time. david gergen says he thought kerry did a good job selling his boss' vision. if you had to give the secretary of state a letter grade what would it be? >> i think he gets an "a" and i also think he gets a best-supporting actor nomination for the oscars.

john kerry gave some of the strongest speeches i've ever heard him give in his career this week. on monday and then again later in the week. it was obvious he thought action was imminent. president obama changed course. i'm not sure how much secretary kerry agreed, but i can tell you he went out there and defended it passionately and vigorously. though i don't agree with the decision, i think john kerry did a fine job defending his boss today. >> that is his job. you said he did it passionately. how but, l.z.? do you think the secretary of state helped to move the needle in the public opinion column as david gergen was saying? he's probably going to get it, but it's going to be a tough slog. >> i'm not as optimistic as david gergen as about whether or not he is really going to get it. not based upon what we saw thus far. i think john kerry did as much

as he could do. at the end of the day we need to hear from the president. we need to hear from him in primetime and we need to hear from him repeatedly. not just making the case in terms of protecting u.s. interests but protecting human lives and enforcing international law that's been around even during world war i. conversations about chemical weapons have been talked about. he needs to make that case whether this has direct interest with the u.s. >> is a president in any real danger -- go ahead and comment. >> i agree with what l.z. just said. i think president obama has lost precious time in making the case to the american people, in explaining why it's so morally outrageous what we have seen. the images were a lot more outrageous when we first saw them. they were shocking when we first saw them.

we haven't seen those images as much in the recent days after they happened. we've seen a lot of speeches and politicians spinning on tv. let's go back to those images and why they should be so outrageous to any human in the world. >> is the president in any danger that this difference, this deference to congress, could it backfire on him? that is what a lot of republicans wanted. >> it's not just the republican thing. you're putting it on the shoulders of the republican. there's very strange bed fellows going on here, i've got isolationist republicans and liberals and doves who don't want to go onto this. it's not just a republican issue. it's a coalition of strange partners. he cannot lose. he cannot afford to lose. if he does lose, we are going to

have a very weakened president internationally and also in the u.s. >> i think we keep characterizing this conversation in the political fashion. what i mean by that is, it's not about whether or not he loses, whether or not president obama loses. this is about what decisions need to be made about a country violating international law. we need to have this separate from politics. not within the bounds of politics. then you start wondering, do i like the president? i don't agree with his agenda. if i give him this, what are we going to do with obama care. all these side items will become part of the underlying conversation when you say win or lose in regard to the president personally. we need to ask ourselves deeper ideological and philosophical question and is military action the only way to enforce these laws? >> l.z., when it comes to national security issues, i can

tell you i don't care if there is an "r" or a "d" or what behind his names. i care about president of the united states. there is no doubt that this is his strategy. this is his gamble. let's look at what happened in england a few days ago. i can tell that you cameron is weaker and perceived as a more weak leader in internationally and in england because of having lost that vote in the house of commons. if president obama took this gamble and loses the gamble, it is his loss. it can be, we can talk about loftiness and how he should be perceived, but there is a difference between reality and perception. it will be perceived as his big loss. >> you can frame it as his big loss, but the fact of the matter is the decisions that congress makes when they do vote and the actions or inaction the president takes going forward is not just going to be about what happens during the final years

of this president's term. it's going to be about what happens in the following presidential terms, as well. it's not about the president right now or the president that is currently sitting here. it's about what happens long term. this isn't about obama. this is about the course that the u.s. is taking in regard to this region and how are we going to go forward in terms of dealing with countries that violate international law. >> okay. we have to leave it there, guys. thank you very much, anna and l.z. we'll talk more about sarin gas. signatures of sarin. john kerry says they've been found in syria. what does that mean and what do these signatures tell us? a pair of weapons experts join me next. this will be our naturally sweetest fruit. >> assure as peaches pop out in summer, every day customers pour into lota fruita seeking

something fresh. >> fresh cut coconut. >> and myrna knows how much that matters. when she moved this struggling neighborhood it was an urban food desert with plenty of fast food, but almost no fruit and vegetables like she grew up with on the texas/mexico border. >> if i could not find this anywhere, why not open up my own establishment and offer every single day for me, for selfish reasons and for everyone else? >> reporter: some predicted local was not support her. that was seven years ago. >> enjoy your lunch. >> reporter: lota fruita has been growing with liberate fruit cups, ice creams, sandwiches and much more. lotta fruita has become so important to the community's identity, it's been given a $50,000 expansion loan from the city. >> this is an up-and-coming neighborhood being revitalized. so we are always looking to

incentivize and assist investments that help attract and keep residents in neighborhoods like this. >> i am self-appointed fruitologist because i have a love and passion for fruit all my life. >> reporter: perez' secret is simple. the first part -- >> everything we do here, we would want to eat. we put a lot of care and consideration to what we do and how we prepare it. >> reporter: and the second part? >> a lot of work. >> reporter: that's made this combination of fresh fruit and a fresh idea into a home grown success. tom foreman, cnn.

ingeniously uses radar to alert you to possible collision threats. and in certain situations it can apply the brakes. introducing the all-new 2014 chevrolet impala with available crash imminent braking. always looking forward. while watching your back. that's american ingenuity to find new roads. and recently the 2013 chevrolet impala received the j.d. power award for highest ranked large car in initial quality. ♪ every now and then i get a little bit tired ♪ ♪ of craving something that i can't have ♪ ♪ turn around barbara ♪ i finally found the right snack ♪ ♪ like carpools... polly wants to know if we can pick her up. yeah, we can make room. yeah. [ male announcer ] ...office space. yes, we're loving this communal seating. it's great. [ male announcer ] the best thing to share? a data plan. at&t mobile share for business. one bucket of data for everyone on the plan,

unlimited talk and text on smart phones. now, everyone's in the spirit of sharing. hey, can i borrow your boat this weekend? no. [ male announcer ] share more. save more. at&t mobile share for business. ♪

[ female announcer ] pop in a whole new kind of clean with tide pods. three chambers. three times the stain removal power. pop in. stand out.

secretary of state john kerry argues that signatures of sarin gas were found in syria. they prove that the u.s. must act against the assad regime. more than 1,400 people were killed in the august attack. kerry says the evidence is overwhelming. joining me now to give me insight is greg tillman and leonard cole. greg is a senior fellow of the arms control association and leonard is an expert on bioterrorism and terror medicine. thank you for joining us. leonard, when we say, when he says signatures, what does that mean? >> any trace of evidence that the chemical was there or is there now. that can be tissue samples from people who were exposed to it, blood samples from these people or some of the material itself. the sarin gas in particular degrades pretty quickly so you might not find the chemical itself after a few days or even two weeks, but would you find some of the breakdown chemicals from the sarin.

>> are you convinced that sarin gas or chemical weapons were used? >> short of being there, every piece of evidence i heard, including the vice president's persuasive remarks convince me it is so. >> greg, are you convinced by the evidence? >> i am also convinced. it does occur to me in this case the intelligence community is being very careful about the language it uses and has built a very convincing case. >> i guess people think it's such a horrible act, obviously, for chemical weapons to be used, but people die by other means. what is the concern here, mr. cole? is it because when you start to use chemical weapons that they may not be as precise as using bullets or bombs? what's the issue here? >> well, i would see it as two issues about why chemical weapons as well as biological, nuclear or weapons of mass

destruction. particularly are heinous and should be outlawed as chemical and biological are. even possessing them by international treaty is against international law as well as in the united states and several other countries domestic law. the manner of killing, for example, with sarin isn't just a matter of shooting. if there is such a thing as less humane ways of killing or dying, sarin gas surely is a perfect evidence. your body begins to shut down. your nervous impulses, nervous system impulses are stopped gradually as you are infused with sarin by inhaling it or letting it go through your skin. ultimately you begin to choke on fluids of your own, your lungs begin to fail. you get tremors. it's a horrible way to die. it's an unhumane way because the gas can't spread and affect a whole bunch of people. >> if syria did use chemical weapons, that is a strict violation of international law.

how should the u.s. proceed from here? >> this is one of the longest-standing taboos we have. i would just add to what has been said that chemical weapons are not particularly effective against troops that are equipped to protect themselves. they always though are devastating against civilians in the area. that's one of the reasons why it's particularly, been identified particularly as a pariah weapon. there are a number of options. it does seem to me very important that the world does something to show the perpetrators that this is an internation international taboo and there is a consequence for violating the taboo. it's worth remembering when the iraqis used chemical weapons against their own people in 1988, and against the iranians

in an eight-year war, the international community basically turned away. >> mr. cole, you were talking about signatures earlier and the symptoms. take us a little bit more deeply into that. again, signatures, what does that mean, what are we gleaning from that? and what they're testing for in the hague now. >> the first thing to say is there are a variety of chemicals that are used as weapons from mustard agent that goes back to world war i and much more recently nerve gas, nerve agent has been developed. we are particularly concerned about the use of sarin, which is a nerve agent. this has the capability, unlike some of the other chemicals of being devastating to the individual in ways that previously had not been. nerve agents are a more select form of pesticides and

insectici insecticides. as i was speaking with someone earlier today, when you spray an insect with an insecticide you see the writhing it goes through and dies. in a much more intense form this is what happens in effect to a human being. we all move, i'm moving my hand now because my brain tells my arm to move. there is an impulse. that becomes blocked when you have sarin or nerve agent in your system either by inhalation or perhaps going through the skin or ingestion. it's a slow, tortuous death. i will have symptoms, even if i die, i will have evidence that i have died from sarin at least for a period of time because it's in my system, in my blood. a tissue sample when looked at in a laboratory will give evidence of that. weeks later there will be chemicals around that are breakdown products of the sarin. it still can be identified. >> thank you. >> thanks to both of you gentlemen. we'll be right back.

[ male announcer ] these days, a small business can save by sharing. like carpools... polly wants to know if we can pick her up. yeah, we can make room. yeah. [ male announcer ] ...office space. yes, we're loving this communal seating. it's great. [ male announcer ] the best thing to share? a data plan. at&t mobile share for business. one bucket of data for everyone on the plan, unlimited talk and text on smart phones. now, everyone's in the spirit of sharing. hey, can i borrow your boat this weekend? no. [ male announcer ] share more. save more. at&t mobile share for business. ♪ starts with freshly-made pasta, and 100% real cheddar cheese. but what makes stouffer's mac n' cheese best of all. that moment you enjoy it at home. stouffer's. made with care for you or your family. see, i knew testosterone could affect sex drive, but not energy or even my mood. that's when i talked with my doctor. he gave me some blood tests... showed it was low t. that's it. it was a number.

[ male announcer ] today, men with low t have androgel 1.62% testosterone gel. the #1 prescribed topical testosterone replacement therapy increases testosterone when used daily. women and children should avoid contact with application sites. discontinue androgel and call your doctor if you see unexpected signs of early puberty in a child, or signs in a woman, which may include changes in body hair or a large increase in acne, possibly due to accidental exposure. men with breast cancer or who have or might have prostate cancer, and women who are or may become pregnant or are breast-feeding, should not use androgel. serious side effects include worsening of an enlarged prostate, possible increased risk of prostate cancer, lower sperm count, swelling of ankles, feet, or body, enlarged or painful breasts, problems breathing during sleep, and blood clots in the legs. tell your doctor about your medical conditions and medications, especially insulin, corticosteroids, or medicines to decrease blood clotting. in a clinical study, over 80% of treated men had their t levels restored to normal. talk to your doctor about all your symptoms. get the blood tests. change your number. turn it up. androgel 1.62%.

car sales events.ng, tests. and that means...er. turn it up. and now there's a new way to buy: truecar. at truecar.com we'll show you... what others paid for the car you want, so you'll know if that sales price... is a great price. save time, save money, and never overpay.

visit truecar.com shaq 1, pain 0. [ male announcer ] icy hot advanced patch with 50% more medicine. pain over. >> terrence moore is here. he is a cnn.com contributor and also mlb.com writer, so tim

tebow was cut by the patriots. he seemed to do pretty well. what's behind the decision to let him go? >> i think he will do very, very well. i would go to his church. wopt you go to the church of tim tebow? >> um, well, i don't know. a lot of people were going to the church of tim tebow at the football arena, but not anymore. >> he can't throw. i mean, he can't throw. the bottom line is that. if you can't throw, you cannot play quarterback in the national football league, even with the read option plays that the teams are going to right now. the bottom line it's a passing league, and this guy cannot do that basic fundamental thing. jo. >> you have been saying this to me about tim tebow ever. you think it finally caught up with him? >> that's exactly right. the 13 and 18 months, hey, everybody can be wrong, and this was his last chance. >> yes or no, football, he says he is going to continue to pursue his life-long goal of being a major league quarterback. is it over?

>> i wish i had $1 billion. stick a fork in him. he is done. >> i want to talk college football. heisman trophy winner heisman manziel can't stay out of trouble. we've talked about this guy before. he had to sit out the first half of yesterday's game because of an investigation involving the sale of autographs. after he came in, he was penalized for unsportsman-like conduct. so his coach benched him. what's the deal with this kid? >> well, you know, i tell you what, people that i blame as much johnny manziel for the situation and all the folks around him. i start with the ncaa. you just mentioned this. it's ridiculous to suspend him for just a half. what do you is you just enable him for more silliness. then you have texas a&m. supposedly this institution of honor. apparently not so much if you are the heisman trophy winner. i tell you something else, don, other people that are involved here are his parents. his parents are apparently afraid of this guy. they took espn, the magazine, last month and they feel he has

an alcohol problem, and he also has an anger problem. well, instead of telling a national magazine, do something about it because what you do is you make this guy even more of a knucklehead. >> interesting. i hadn't been to atlanta in a wheel. what is that big ferris wheel thing? is that new? >> i saw that driving in, and it scared the heck out of me. where did that come from? it's very scare where i to have it in that spot. >> yeah. >> i have no idea. >> thank you. >> appreciate it. >> i thought you were an expert on everything. we'll talk to you about syria next. thank you very much, terrence. >> thank you. >> our conversation about syria continues after this. hanging out with this guy. he's just the love of my life. [ male announcer ] getting to know you is how we help you choose the humana medicare plan that works best for you. mi familia. ♪ [ male announcer ] we want to help you achieve your best health, so you can keep doing the things that are important to you. keeping up with them.

i love it! [ male announcer ] helping you -- now that's what's important to us. these chevys are moving fast. i'll take that malibu. yeah excuse me. the equinox in atlantis blue is mine! i was here first. it's mine. i called about that one. it's mine. customers: [ echoing ] it's mine, mine, mine. it's mine! no it's not! it's mine! better get going. it's the chevy labor day sale. [ male announcer ] the chevy labor day sale.

just announced: $500 labor day cash now through september 3rd on most 2013 chevrolet vehicles! [ sneezing ] she may be muddling through allergies. try zyrtec®. powerful allergy relief for adults and kids six years and older. zyrtec®. love the air.

>> the world is watching as tensions over syria rise. it's going to be a bezy week in washington -- obama is set to meet with two of the senate's

leading republican voices making his case for military involvement in syria. senator john mccain and senator lindsey graham head to the white house tomorrow. >> here are five other things you need to know for your week ahead. we call it our weekly bond. tuesday the new eastern span of the san francisco oakland bay bridge is scheduled to reopen to traffic. the new section costs $6.4 billion. it's been nearly 25 years since the earthquake damaged two sections of the old bridge. yahoo is getting a makeover. the internet giant unveils a new logo on wednesday. it's been the same since 1995. yahoo says it's going modern while staying familiar. power meeting in russia. the g-20 summit kicks off in st. petersburg on thursday. president obama will be there along with leaders from the world's leading economy. friday aaron hernandez will be arraigned on a first degree murder charge and five weapons charges. hernandez is a former tight end

for the new england patriots. he is charged with murder in connection of the death of semi-pro football player odin lloyd. and who will play host to the 2020 summer olympics? the international olympic committee will decide saturday if it will be madrid, tokyo, or istanbul. ioc members will also vote on whether squash, wrestling, baseball, or softball will join the other traditional olympic sports in 2020. and that's your week ahead. and that's it for me. i'm don lemon. good night. >> all teams. ♪