US Officials: Strike on Syria Could Take Place "As Early as Thursday"

American intervention looking increasingly likely after recent suspected chemical weapon attack in Syria

Missile strikes against Syria could be launched "as early as Thursday," senior U.S. officials said Tuesday as the White House intensified efforts toward an international response to the suspected use of chemical weapons.

The "three days" of strikes would be limited in scope, and aimed at sending a message to the regime of Syria President Bashar Assad, U.S. officials told NBC News.