Gee Agnew News Today

transit system have been briefed on the overseas threat. in whats being called an abundance of caution, they are stepping up a security search along amtrak and tightening security in new york city. >> we have done some tactical shifts and changes that we think are appropriate at this time. >> reporter: the travel alert for americans in europe is light on details. heavy on impact. >> i wouldnt say we have specific information about a particular place, a particular time. and yet we have ...