Biden allows Ukraine to hit Russia with American weapons near Kharkiv
"...U.S. policy prohibiting the use of long-range missiles known as ATACMS, or Army Tactical Missile System, that could hit targets deep inside Russia has not changed. "This applies to counter-fire capabilities that are deployed just across the border. It does not apply to ATACMS or long-range strikes," said Michael Carpenter, senior director for Europe at the White House National Security Council. ..."
Reference: Voice of America .