There are currently more foreign intelligence operatives in the United States than at any point in the country’s history, the former head of the House Intelligence Committee claimed on Wednesday.

“There are more spies in the United States today from foreign nation states that at any time in our history — including the Cold War,” former Rep. Mike Rogers (R-Mich.) said in an address at the Heritage Foundation.

“And they’re stealing everything. If it’s not bolted down, it’s gone,” Rogers added. “And if it’s bolted down, give them about an hour — they’ll figure out how to get that, too.”

When asked for the source of his claim, Rogers appeared to credit American intelligence agencies.