FBI: ISIS Is Now A Bigger Threat To (domestic) U.S. Than Al Qaeda
For outsiders the importance here is not that "the US" has decided that ISIS is its number one problem, but that those in charge of domestic homeland security see ISIS in the continental USA as being a far bigger problem that Al-Qaeda cells. Comey said &ldquo;what worries me most is particularly [ISIS&rsquo;s] investment in social media, which has been blossoming in the last six to eight weeks.&rdquo; &nbsp;This is a significant shift in the FBI's focus, and the mention regarding social media will have meant domestic-US social media traffic, not international traffic.
Comey later said ISIS has ramped up social media efforts in recent weeks.

Responding to a question from a reporter, Comey said "what worries me most is particularly [ISIS's] investment in social media, which has been blossoming in the last six to eight weeks."

The group's social media efforts could "cause a significant increase in the number of incidents we see," Comey added.

The FBI chief said Americans who see something suspicious should notify law enforcement.

"When the hair stands up on the back of your neck, just tell somebody," he said, adding that "we investigate in secret so we don't smear innocent people."