Obama Warns Syria's Assad Against Use of Chemical Weapons

U.S. weighing military options if Syria uses WMD; Former U.S. official says Iran's infamous Quds Force has urged Syrian regime members to use Sarin gas against rebels and civilians; U.S. fears Assad might use chemical weapons now that he is under greater pressure.

The White House and its allies are weighing military options to secure Syria's chemical and biological weapons, after U.S. intelligence reports show the...