today they decided to go ahead and just out of an abundance of caution let law enforcement know that hey, we're taking this very seriously, and you should do. >> a language a lot of people have tom com to know. any specific, imminent threats here? >> reporter: there is none. but the concern is there is someone in this country -- and we know there are people in country who sympathize with isis who are sitting there on the edge who we've come to know as these home-grown violent extremists that the fbi has been concerned with specifically now around the holidays. they may now be reading and the now may decide hey now is my time to act. so that is the biggest concern for law enforcement around the country. and the bulletin just sort of this morning told security at churches and law enforcement around the country what to look