Secretary of State Marco Rubio unveiled a new policy Thursday to impose visa restrictions against far-left terrorists. File Photo by Bonnie Cash/UPI | License Photo

July 16 (UPI) -- Secretary of State Marco Rubio unveiled a new policy to impose visa restrictions on alleged far-left terrorists, as the Trump administration promotes far-left political violence as a growing threat not only to the United States but also to the world.

The visa-restriction policy, announced Thursday, targets members of far-left terrorist groups and other aligned organizations who have supported or incited acts of terrorism or violence, participated in economic sabotage or supported violent and other criminal actions.

Rubio announced the policy the same day he spoke at the opening of an international summit on political terrorism in Washington, D.C., where he said that for far too long the country's counterterrorism doctrine has had a "blind spot when it comes to extremist violence from the political left."

The United States' top diplomat spoke as the Trump administration has turned the attention of the United States' counterterrorism apparatus toward far-left extremism. President Donald Trump has criticized local authorities' failure to prosecute violence during the 2020 racial-justice protests, while denouncing the Biden-era prosecutions of his supporters who stormed the Capitol and fought law enforcement on Jan. 6, 2021.