Federal officials said they will announce the additional screening guidelines this week in a move that will serve as a safety precaution to calm nervous travelers — and a way to silence the growing chorus of lawmakers and outsiders calling for more administrative intervention.

“I can assure you that we will be taking additional steps, and we will be making those public in the coming days once we can work out the details,” said Tom Frieden, director of the Centers for Disease Control and Prevention.

In addition to airplane passenger screening, the Coast Guard will also start screening cargo ship personnel coming from Ebola-infected countries who arrive at U.S. ports, according to an announcement from Sen. Chuck Schumer’s office.