U.S. counterterrorism and intelligence teams are on high alert and law enforcement in major cities have bolstered security in the wake of this weekend's strikes on Iran.The big picture: FBI director Kash Patel instructed federal counterterrorism and intelligence to "mobilize all assisting security assets needed" after placing them on high alert Saturday, per a post to X, while law enforcement in D.C., New York City and Los Angeles are among those to take additional steps.The announcements come a...