ISIS Renews Previous Calls for Attacks in West as Police Remain Vigilant

NYPD warns officers after new ISIS video surfaces online.

It’s a message ISIS has broadcasted for months, even taking some of the wording in its latest video directly from one released in September. Still, out of an abundance of caution, federal and local authorities overnight urged their agents and officers to be vigilant in the days ahead.

In a separate message issued to law enforcement officials in New York City, the NYPD’s top intelligence and counterterrorism official, Deputy Commissioner John Miller, notes there is no “specific, credible threat” from terrorist groups targeting NYPD officers. Federal officials have said the same about the threat to all cities in the U.S.

“Although there’s not a specific, credible threat that I can point to, I certainly think that the environment has changed over the years,” Attorney General Eric Holder told ABC News’ George Stephanopoulos from Paris on Sunday. “We have a very small number of people, without huge amounts of planning, without huge amounts of resources, inflicting very severe damage.”

In particular, so-called “lone wolves” give Holder “great concern,” he said.

In his message to New York City officials, Miller noted that recent terrorism-related events around the world "reinforce that the current terrorist threat to Western targets is a bifurcated one.”