If U.S. President Donald Trump doesn’t extend the New Strategic Arms Reduction Treaty — only remaining U.S.-Russia arms control pact — or succeed in negotiating a replacement treaty, it will expire on Feb. 5.

"You can't hack something that doesn't have an IP address," Lt. Col. Jason Rossi said.

The leaked draft policy document prompted sharp criticism from arms control experts, who voiced concerns it could raise the risks of nuclear war.