the u.s. says nearly 1,500 people, including at least 400 children, were killed in a chemical weapons attack outside the syrian capital damascus last month. the obama administration says america cannot turn a blind eye to such a volatile corner of the world. >> that poses a serious national security threat to the united states. and to the region. >> reporter: president obama insists this is a limited strike. there will not be boots on the ground. he said this is not iraq. this is not afghanistan. but john and diana, that is a very tough sell to a war weary nation. karen travers. thank you. on a lighter note. even senate heavyweight need a break some times. cameras catching senator john mccain playing poker on his iphone during the heated hearing on syria. afterward, mccain came clean in a sarcastic tweet that began with the word scandal. he was playing during a hearing that he said exceeded three hours. the senate action is giving president obama a boost as he