John Richardson

U.S. troops are being advised to steer clear of genetic-testing kits over what Pentagon leaders say is a growing concern.

The Navy's top officer warned against using popular at-home ancestry DNA test kits this week.

"We will question our assumptions; we will think differently about the competition we are now in," Gilday said.

The cerebral former head of Naval Nuclear Propulsion has served through a period of service calamity and upheaval.

Adm. John Richardson told reporters Wednesday that the announcements left flag officers vulnerable to cyberattacks.

John Richardson listed the Navy's intention to "develop and field an offensive hypersonic weapon by 2025" as a top priority.

Richardson kept his public affairs officer on staff for months after harassment allegations came to light.

The Navy is finding ways to collaborate with industry better and sooner, the service's top officer said Thursday.