Home Administration US Park Police say it was a mistake to say no tear... Administration US Park Police say it was a mistake to say no tear gas was used in Lafayette Square By tlejeune@thehill.com Rebecca Beitsch - June 5, 2020 3 0 SHARE Facebook Twitter The U.S. Park Police on Friday hedged its earlier claims it did not use tear gas to clear crowds near the White House Monday, telling Vox earlier statements were a “mistake” given that the chemical agents they used cause similar eye and lung…