Terrorist cells are in a holding pattern – "the jury is out" – on revealing whether President Donald Trump's tough talk and actions on eradicating ISIS are a deterrent or a catalyst for future attacks, the NYPD deputy commissioner for intelligence and counterterrorism said Sunday.

"Is it something where they're taken aback and fearing this administration in a way they didn't the last? The jury is out on that," John Miller told "The Cats Roundtable" on 970 AM-N.Y.

Miller told host John Catsimatidis he has not seen too much chatter in terrorism intelligence – passive or aggressive – on what ISIS's responses to the new administration will be.

"We don't see too many outward signs, meaning President Trump, since he's been elected and in office, has not become much of a feature in the terrorist propaganda," Miller told Catsimatidis. "They don't talk about him or cite him."

Despite President Trump's vow to eradicate ISIS and his "MOAB" bombing salvo in Afghanistan earlier this month, terrorists have not presented any united front of late against the U.S., but it might just be a matter of an evaluation period, Miller said.

"It seems, analytically, that the terrorists are going through a lot of what Washington and other pundits are, which is, they are trying to size up the new administration and what they are dealing with," Miller said. "I don't think they've committed to an idea about what the real differences are yet."