The House Oversight Committee wants to find out why the Park Service behaved so bizarrely. ... Representative Trey Gowdy of South Carolina, a former prosecutor, almost drove National Park Service Director Jonathan Jarvis into incoherence with his relentless questioning. Gowdy wanted to know why Jarvis had allowed “pot-smoking” Occupy Wall Street protesters to camp overnight illegally in Washington’s McPherson Square park for 100 days, yet put up barricades to keep veterans out of war memorials on the first day of the shutdown. By not issuing a single citation to the Occupy campers, Gowdy argued, the Park Service was treating them...