you know, the most startling statistic about littleton? not that 12 kids got killed, that's horrific, that's the worst thing you could ever imagine-- but that, in addition to that, the school reported 76 firearm violations at the school during those 12 months. dean hamer: if you compare seattle to vancouver, those are two very similar cities, equal amounts of rain, close to one another physically, socioeconomically quite similar. the amount of violent crime in those two cities is virtually identical. but if you look at the number of murders, it's ten times higher in seattle than it is in vancouver. what's the difference? the difference, very simply, is that in the united states, you can easily purchase guns. in canada, you cannot. we've lost two children to guns in this practice. both teenagers-- one was caught in a gun exchange over drug money. another was shot because she was dating someone's boyfriend at twelve. - drugs. - drugs. - alcohol. - alcohol. they very much increase the impulsive amounts of violent behavior as they are intended

barry petersen, cbs news, littleton, colorado. >> the girl scouts of america have been around for 102 years have not been easy. the group has lost more than 700,000 members since 2003. dropping their ranks from 2.9 million to 2.2. to fix that they are launching a new recruitment campaign starting today using social media, neighborhood outreach and a message from first lady michelle obama. >> as a girl scout volunteer you can show girls that anything is possible. and you can inspire them to dream bigger and go further than they ever even imagined. >> miss obama serves as honorary national president of the girl scouts as every first lady has done since 1917. we are getting a first look tonight at an unusual kind of baby boom in china. 14, there you go, panda cubs were born at a chinese research center this summer. and that's the first look. impressive because pandas are notoriously difficult to breed in captivity. there are fewer than 1600 living in the wild. next up, the "breaking bad" habit. tv junkies bingeing on deadline. bob's heart attack didn't come with a warning. today his doct

here we have the massacre at columbine, high school, littleton, colorado where two students killed ar and then themselves. we are half way through the list of the dozen worst mass shootings in history and it has taken 50 years to get there. terrible events with awe den people killed. it takes a half century to do them. the other half begins in 2007 at virginia tech when a single student armed with a pair of semiautomatic weapons killed 32 people before taking his own life. in 2009, a pair of mass shootings. in binghamton new york, a former student killed 13 and then himself. then army psychiatrist who opened fire at the soldier readiness processing center in ft. hood, texas killing 13 people in that what he later described as an act of war. last month, hef convicted and sentenced to death for those murders. these things are coming faster now. in 2012, the nation again suffered not one but two of the worst massacres in our history. july 2012 a deranged young man goes in to a movie theater in aurora, colorado, and starts shooting using multiple against guns and a magazine that held 100

april 1999, columbine, high school, littleton *, colorado.n their fellow students and teachers. death toll that day, 13. also 13 killed in fort hood, texas when former army psychiatrist nadal hassan opened fire. he was sentenced to death for that crime only weeks ago. 12 is the count for the shooting at the navy yard. that does not include the gunman aaron alexis. 9 people were injured including a woman who took a bullet to the skull. martha: it's a tense day in washington that got so much worse after an incident right in front of the white house that had the secret service rushing in a panic. we are going to tell you what happened there. bill: despite multiple arrests and his checkered service. aaron alexis got an honorable discharge from the u.s. navy. >> i'm sad because i can't believe he would do something like this. we all get mad and upset but we don't do this. with simple, real, like roasted peanuts, creamy peanut butter, and a rich dark-chocolate flavor, plus 10 grams of protein, so it's energy straight from nature to you. nature vall

as does the fact that you had the massacre in aurora, columbine and littleton all in colorado. >> this is a state that is actually familiar with this because columbine happened so long ago, and aurora happened much more recently, but it's a real wake-up call, shows gun rights still has huge muscles, especially in the west, and the thing these legislators have in common, it bears repeating, they voted in favor of unpopular gun control laws limited ammunition, magazines to 15 rounds, requiring background checks. a first ever recall of this type in colorado. one of the rare situations where an election involving state legislature gets nationized. the money that poured in was enormous. gun control advocates had a huge advantage. one of the arguments we've heard is that the essentially the reason for this was a blow-back reaction to mayors against illegal guns. that's the group headed by new york mayor michael bloomberg. he was sort of cast as a heavy-handed outsider trying to influence the state. the bloomberg folks say it was a local movement and they're trying to downplay the national im

host: littleton, colorado, tim, good morning. caller: thank you, i know you are almost out of time.seems like the solution is right in front of us, it is what jennifer -- what senator mentioned proposed. one, condemn what they did. two, commit ourselves to a diplomatic resolution with , anda, syria, and so forth three, if he uses chemical weapons he has the authority to .trike out there i would love to hear your comment. guest: i think you have laid it out. thank you for being so thoughtful of this. i think that that is what the administration is doing. i do not believe that there will be a vote, because of what you just said. workve to let this process its way through. again, the administration is very careful with its proposals, but they are allowing that dynamic to take place. in the meantime myself and writing alternatives, seeking co-sponsors for support with an alternative laid out to the american people to understand of what a non- military solution would mean and how they would hold the assad regime >> the president addresses the nason -- the nation tonight on syria. we are