On Sunday, CNN reported that the CDC held a video conference with approximately 800 staff members to discuss the traumatic event and allow them to ask questions. Staff said they felt like "sitting ducks" as bullets whizzed just over their cubicle walls and they dove for the floor.

In an interview with CBS’s “Face the Nation,” Adams said Kennedy’s reaction was inadequate, while also taking issue with his past criticism of the agency and his questioning of the safety and efficacy of vaccines.