Permanent fencing coming to Capitol as acting police chief vows to bolster security By Grace Segers DHS warns against domestic terrorism Washington — The acting chief of the U.S. Capitol Police called for "vast improvements" to security around the Capitol in the wake of the January 6 attack on the complex, including the installation of permanent fencing and stationing of nearby backup security forces. Acting Chief Yogananda Pittman said that Capitol Police has "hardened the physical security across the Capitol Complex in order to further protect the Congress" in the weeks since a mob of former President Donald Trump's supporters overran the Capitol. One Capitol Police officer was killed during the attack, and another died by suicide shortly thereafter.