...Cohen-Watnick worked on counternarcotics and counterterrorism policy for years as an intelligence official at Defense Intelligence Agency. He served for four years at U.S. Southern Command (Southcom) as an intelligence analyst from 2010 to 2014 and served a tour in southern Afghanistan.
There has been no greater advocate of President Trumps agenda than Ezra Cohen. His extensive background in intelligence and continued service to his country are prime examples of the need to have capable individuals who are steadfast in their support of pro-American policies, a former White House official told Breitbart News on background....
He sounds like a Jack Ryan type of dude.
Not sure of the signicance but must be important:

Ezra Cohen Watnick was a protege of Gen.Flynn. Maybe this means Gen.Flynn is coming back into the administration.
Another source said Ezras advocacy for the presidents America First national security agenda drove McMaster to fits of rage fueled by insecurity.
Ezras side of the argument clearly won out Ezra is back and H.R. is occupying an endowed chair funded by a Palestinian activist, the source close to the president said.
Thanks for posting!