On Friday, a gunman fired more than 180 rounds at the Centers for Disease Control and Prevention buildings in Atlanta. That has left staff scared, as well as frustrated by the U.S. Department of Health & Human Services' response.

The Georgia Bureau of Investigation identified the gunman as 30-year-old Patrick Joseph White, of Kennesaw, Georgia.

By Dan Levine and Robin Respaut NEW YORK (Reuters) -Grappling with the aftermath of a shooting that killed a police officer and left nearly 100 shattered windows, leaders at the Centers for Disease Control and Prevention held virtual meetings with employees on Tuesday to rebuild trust at the agency's Atlanta headquarters.