U.S. Senator from Missouri Claire McCaskill appearing on morning news shows says there is "no evidence at this point that the two Boston bombers were part of a larger organization".
McCaskill also talked about concerns over tensions in Syria after reports of chemical weapons being used there by government troops on rebels. McCaskill says she wouldn't rule out sending troops there. But her republican counterpart, says there are other measures the U.S. can take instead of sending in the troops.
"I don't think you ever want to rule it out but I think this is kind of as Saxby says its deteriorated but its not at a tipping point so I don't think you want to say absolutely not" says Sen. McCaskill (D-MO).
"We've got f-22 and b-2s that can take out the anti-aircraft missiles that they have and they are very sophisticated" says Sen. Saxby Chambliss (R-GA).
Chambliss says a no fly zone is an option, but he believes the U.S. should do something because the world is watching.