The FBI chief said Americans who see something suspicious should notify law enforcement. For outsiders the importance here is not that " the US " has decided that ISIS is its number one priority , 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 " what concerns me most is particularly [ ISIS"s ] investment in social media , which has been blossoming in the last six to eight weeks . " This is a significant shift in the FBI 's focus , and the mention regarding social media would have meant domestic - US social media traffic , not international traffic .
For outsiders the importance here is not that " the US " has decided that ISIS is its number one priority , 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 " what concerns me most is particularly [ ISIS"s ] investment in social media , which has been blossoming in the last six to eight weeks . " This is a significant shift in the FBI 's focus , and the mention regarding social media would have meant domestic - US social media traffic , not international traffic .