Even when it was reported in local media, downplay was the word of the day. Although they didn’t reach a goal of two million riders, thousands of bikers rolled through the Washington, D.C. area to mark the 12th anniversary of 9/11 on Wednesday. The bikers — riding with the group “Two Million Bikers to D.C.” — snarled traffic on the Beltway with a ride honoring the victims of the Sept. 11, 2001 terrorist attacks and the members of the military called to serve after the attacks. Many participating riders were veterans who said they rode to protect Americans’ freedom in...