al jazeera's jamie mcintire shows us the attack is on the web. >> the u.s. says the coalition continues to chip away at the supply lines. these videos released by the u.s. central command show some of the latest attacks against oil and gas facilities controlled by i.s.i.l. in syria. but at a pentagon news conference defense secretary ash carter boasted, computer networks, cyber bombs. >> this is something that is new in this war. not something you would have seen back in the gulf war. but it's an important new capability, and it's an important use of our cyber-command and the reason cyber-expand was established in the first place. >> reporter: carter gave few details about the new cyber-offensive except to say cyber bombs overloaded its computer systems so they can't function, which in turn would cause a loss of confidence in its networks and limit i.s.i.l.'s ability to spread propaganda. >> we have to attack their command and control, one of the ways to do it. >> physically and virtually limit i.s.i.l, limit their abilities to conduct operations locally and

al jazeera's jamie mcintire reports from the pennington. >>> in announcing the death of i.s.i.l.'s reputed second in command, defense secretary ash carter says this underscores the need in his words to hasten the defeat of i.s.i.l. wherever it exists in the world and the success in iraq and syria shows the momentum has shifted in favor of the united states and its allies. defense secretary ash carter says the war against i.s.i.l. is becoming more personal every day. >> we are systematically eliminating i.s.i.l.'s cabinet. >> man number 2, hajji imam, responsible for attacks outside iraq and syria, although officials could not connect him to paris or brussels attacks. so-called minister of war, omar the chechen, died in an air strike. and killed abu sirah, said to be responsible for paying the i.s.i.l. fighters in iraq. >> these people have been around for a long time, they are senior, they are experienced, so eliminating them is an important orvet and achieveobjective and n important result. >> iraqi forces say i.s.i.l. forces are no longer fighting to the death but instead retrea

jamie mcintire has the story. >> antonio, the be investigation is particularly embarrassing to the air force, prompted a top to bottom shakeup aimed at restoring the reputation of air force officers who are in charge of launching icbms in the event of nuclear war. back then a launch investigation of officers, in which missile ears aeersas they're called, han cheating on exams. not on the missileers but the forces who protect them, guarding the movement of nuclear weapons as well as the missile deployments. 14 rairchging in rank from airman first class to senior airmen are accused. officials are not saying what drugs are involved, whether it's marijuana or more serious drugs such as cocaine. and wyoming is not one of the states that has had legalized marijuana. those 14 junior military personnel have been relieved of duty while the investigation continues. the investigation does not involve any of the officers who are coalz the nuclear tipped minute man missiles. all forces on the base are subject to random drug tests but not how the issue was uncovered. one man reported it to his super

jamie mcintire, the pentagon. >>> bomber blew himself up at a checkpoint in yemen. a second bomber drove an ambulance into a group of first responders, killing 14 more soldiers and civilians. a third bomber detonated explosives at a checkpoint close to the carpa camp. i.s.i.l. is also claiming responsibilities for a bombing after iraqi military officials flounced they were make gains against i.s.i.l. in anbar province. first part of a push against mosul is already underway. iraqi forces report slow but steady progress, in their effort to regain the second largest city in the country. the iraqis are now trying to force the group out of the villages and towns that surround it. with help from kurdish peshmerga and u.s. air strikes, the iraqi military is now just 35 miles south of downtown mosul. >>> in syria government forces say they are gaining ground had palmyra taking territory from i.s.i.l. drone footage aired on russian state tv, show syrian troops regaining ancient fortress. palmyra had been under i.s.i.l. control since may. mohammed jamjoom has more. >> these p

al jazeera's jamie mcintire reports from the pentagon. >> reporter: antonio, the pentagon only belatedlylounced additional troops to iraq, once a marine was killed over the weekend by rocket fire the pentagon said as many as 200 additional marines have been dispatched to protect iraqi forces and the americans who advise them. at dover air force base in delaware, a reminder that even as u.s. troops in iraq are only advising and assisting iraqi forces they are still in an active combat zone and therefore in danger every day. >> one of our outstanding united states marine sergeants was killed in northern iraq as we assisted the iraqi government in dealing with i.s.i.l. >> reporter: the death, the second u.s. combat fatality in the anti-i.s.i.l. campaign, came just a day before the president arrived in cuba for a meeting with raul castro. >> a reminder that even as we embark on this historic visit there are u.s. armed services who are sacrificing every day for our freedom and safety so i'm grateful to them. >> as the u.s. does more to help the iraqi forces it increases the danger to u.s. tro

al jazeera's jamie mcintire has more from the pentagon. >> well, antonio, putin is beginning to pull out most of his troops after a five month intervention, an intervention that he insisted was all about fighting terrorists but more, the united states feels, was more about propping up bashar al-assad. the glim are of positive news, russia was limited to striking i.s.i.l. targets and it seemed to be doing so with gusto, targeting i.s.i.l. stron strongs in palmyra and ala boud. then came the totally unexpected statement from putin, the pullout of pain part of russian forces from syria saying their goal in large part has been fulfilled. a pentagon official admitted putin's pullout came as an utter advise and saying stay tuned. >> i'm going to have to reserve comment until we have a chance to take a look at it and make an assessment. >> the fact that the president will be speaking to vladimir putin? >> i certainly wouldn't rule it out, we'll keen you posted. >> made a point of saying it will continue to have a presence at its long time naval base at tartus, newly established air base at

jamie mcintire has the story. >> the year was 1921. warren g. harding was president. >> the republicans came back to power on the slogan back to normalcy. >> the roaring 20s were starting, tea pot dome was supreme and challenging of sea power. >> the thought to be unsinkable prize of war goes down. >> reporter: in march of that yore, the sea going tug uss con towinssconestoga. >> not in a pleasant way lost at sea. one of the largest sea and air searches in the at which time century up to the search for amelia earhart. >> for 95 years all that was known of the uss conestoga, was that in an age before sophisticated weather forecasting, it sailed into a storm and vanished. then in 2009, noaa turned up what appeared to be a shipwreck. noaa investigators went back for a closer look. >> so it was in september of 2014 that we descended on a target which as we looked at it, immediately was seen to be a wreck of some age, festoon wednesday marine life, indeed speaking to a fact it is in a sanctuary, the haven of much marine life, you see anemones, and oc

jamie mcintire has the story. >> a horrific prospect so-called confined to hollywood movies. make an atomic bomb takes a lot of technology but a dirty bomb is a true weapon of terror, it spreads the packs of fear with a minuscule amount of radioactive material. last week's attacks in belgium are fresh in their minds. underscores a horrific what if scenario. what if i.s.i.l. had packed the explosives not with nails but with radiologicallal material? it's those issues that keeps joe up at night. that i.s.i.l. or some other group could obtain radioactive material to make a so-called dirty bomb a conventional explosive that spreads invisible radioactive dust. >> it's almost unbelievable that i.s.i.l. won't try to do something like this. >> we're here on vermont street in the heart of washington, d.c, just blocks from the white house, what would happen if someone would set off a radiological bomb right here? >> depending on the wind, you would see a cloud of smoke go up, it would go down to the white house just a few blocks away, contaminating white house, it might spread up the r

. >> jamie mcintire, al jazeera washington. >>> i am antonia morra. sheila macvicar is next with "inside story." have a great night. >> it was an historic moment, 88 years in the making. president obama speaking to the government and citizens of communist cuba on the island's capital city. the first sitting president to visit cuba since calvin coolidge, back in 1978. so with when all of the ceremonies, photo ops and speeches were over, was it all just political theater? or did the president really usher in a new era?

. >> absolutely, thanks for joining us, jamie mcintire at the pentagon. that's or show for today, i'm ali velshi, thank you for joining us. the news continues on al jazeera firefighters in the u.s. are more liabilities to die by suicide than by fighting fires. in 2015 alone more than 80 firefighters killed themselves. but the numbers could be higher because most fire departments to not track suicides. it is a subject that's rarely talked about in the fire service. >> the average person can't imagine the crap that we see out there. we take care of everybody but we also see the worst of the worst out there in the world and you do that day in and day out. firefighters kill themselves in record number these days. it's just kind of a dirty secret of the profession . going to talk some more about my experience -- >> while reporting this story we came across videos of tim casey a former firefighter paramedic, talking about his problems with stress on the job. >> i was overloaded on the job. the things i saw, i was depressed, i was drinking too much. when we do s

. >> absolutely, thanks for joining us, jamie mcintire at the pentagon. that's or show for today, i'm ali velshi, thank you for joining us. the news continues on al jazeera photos ♪ ♪ >> some of the best names in the republican party, candidates and elder statesmen alike, thou shalt not speak ill of another republican, donald trump about he's nominated, loud voices inside the party say they're ready to either deny the leading vote getter, delegate winner, or openly oppose the party standard-bearer. big party? no fun. it's the "inside story." welcome to "inside story." i'm ray suarez. the republican party started its nominating process with some 17th candidates. the parties held 15 primaries and caucus he and one candidate has won ten of them. the bill field gave wide choice of tendencies and thraifers and th flavors andthe guy who's won por weeks has never run for office and has what one might generously call an eclectic standpoint. republicans say they wouldn't be happy for donald trump to be the nominee but after waiting for weeks for donald trump to co

. >> jamie mcintire, al jazeera washington. >>> i am antonia morra. sheila macvicar is next with "inside story." have a great night. >> it was an historic moment, 88 years in the making. president obama speaking to the government and citizens of communist cuba on the island's capital city. the first sitting president to visit cuba since calvin coolidge, back in 1978. so with when all of the ceremonies, photo ops and speeches were over, was it all just political theater? or did the president really usher in a new era? it's the "inside story". welcome to "inside story," i'm sheila macvicar, in for ray suarez. it was a whirlwind tour for president obama. three days of diplomacy, meetings, and even a baseball game. but while the president seems to be warming up to his cuban counterpart, raul castro, the differences may be more evident than ever before. reporting from havana. >> reporter: it was the most anticipated part of president barack obama's historic visit, a message earmarked directly to the cuban people. >> i have come here to bury the last remnan

jamie mcintire reports. >> one reason in his view the momentum is now on the u.s. side not i.s.i.l.'s. the military says theis the u.sd coalition, videos released by the u.s. central command show the latest attacks against oil and gas facilities controlled by i.s.i.l. in syria. but santa pentagon news conference defense secretary ash carter boasted the pentagon is also targeting the i.s.i.l. computers. called cyber-bombs. >> something new in this war, not something you would see back in the gulf war but it is an important new capability and it is an important use of our cyber command. and the reason cyber command was established in the first place. >> reporter: carter gave few details about the new cyberoffensive except to say cyber bombs were designed to disrupt expand and control, in turn causing a loss of confidence in their networks and limit i.s.i.l.'s ability to spread propaganda. >> we have to attack their command and control, one of the ways to do it. >> both physically and virtuallyize late i.s.i.l, limit their command and control, ability to communicate with each other and

. >> be national security correspondent jamie mcintire reports. >> well, john oops the world has yet to witness an act of nuclear terrorism. making a nuclear bomb requires a lot of technology but a dirty bomb is much easier and is a true weapon of terror. because it sows maximum fear with only a minuscule amount of radioactive material. as leaders from more than 50 countries arrive for the two day nuclear summit in washington last week's attacks in belgium are fresh in their minds. the ability for bombers to wheel their explosives into a terminal, leads to what if scenario. what if i.s.i.s. didn't pack their bombs with nails but with radio logical material? that keeps joe sirincioni up at night. that i.s.i.l. or other terrorist group could obtain radioactive material for a dirty bomb. >> it's almost unbelievable that i.s.i.s. won't try to do something like this. >> so we're here at vermont and l street northwest in the heart of washington, d.c, just blocks frut white house. whafrom the white house. what would happen if someone would set off a radio logic al bottom here? >> it would g

jamie mcintire has more from the pentagon. >> john, it is particularly embarrassing to the air force, coming two years after a drug and cheating scandal rocked the corps, aimed at the reputation of officers in charge of launching icbms. drug investigation uncovered a widespread scandal in which missileers they are called had been cheating on tests. not on the missileers but the forces who protect them, guarding the nuclear weapons and the missile fields where they are deployed. 14 junior enlisted personnel ranging in rank from junior airmen to senior airmen were involved. officials are not saying what drugs are involved whether it's marijuana or more serious be drugs, cocaine, wyoming is not a state that marijuana has been permitted and it is not permitted in the military. junior enlisted personnel have been relieved of duty and the air force says at no time was the security of nuclear weapons compromised and the investigation did not involve any of the officers who control the medicineman missiles. all forces at the base are subject to random drug tests but that's not how the drug us

. >> jamie mcintire begins our coverage from the pentagon. >> reporter: as leaders from more than 50ountries arrive for the two-day nuclear summit in washington, last week's attacks in belgium are from to their minds. the ability of bombers to wield their explosives into the airport terminal brings a what-if scenario. what if they had packed them not with nails but with radiological material? it's that prospect that keeps arms control advocate joe sirinso in. i up at night, that isil or some group could obtain radioactive material to make a so-called dirty bomb, a conventional explosive that spreads irterrifying radioactive dust. >> it's almost unbelievable that isis won't try to do something like this. >> so we are here at vermont and elm street in the heart of washington, d.c. blocks from the white house. what would happen if someone set off a raid logic bomb right here? >> depending upon the wind and the size of the bomb, you would see a big cloud of smoke go up. the radioactive material would start to drift with the wind. it would go down to the white house just a few blocks away