>> previous propaganda includes a cryptic message threatening an attack and time for the holiday holidays. this was not published by the isis news agency, but one of its followers. isis is now encouraging followers to flee the scene and survive. the loss of the so-called caliphate -- the group is facing a shortage of recruits who are willing to for the cause. also, a contact he does work for the u.s. government tells fox that he believes isis has not been more aggressive taking responsibility for the 27-year-old suspect and monday's new york city subway attack because the tumor group is standard having lost its base in iraq and syria.