The FBI is scrambling to track a growing number of Americans who have left to join the fight in Syria, including investigating how the young men were recruited and the logistics of their travel, officials said Thursday. Dozens of Americans are among the thousands of foreigners who have flocked to Syria to take part in its bloody civil war. "How are people being radicalized, what methods are being used, and what are the logistics behind the travel of some of these young men?" said Kyle Loven, chief division counsel for FBI in Minneapolis, discussing how Syria has replaced Somalia as the go-to place for young jihadists in recent years.
@highlight
U.S. seeks information on Americans traveling to Syria to fight
@highlight
The death toll of Americans killed in Syria's civil war may have tripled in recent days
@highlight
U.S. official: Foreigners fighting for such extremist groups come from 50 nations
@highlight
Obama spokesman: U.S.-born extremists dangerous due to training, willingness to die
He'd been on @placeholder authorities' radar for some time by then.