Labor Day en The March On Washington, Grand Prix Closures, Dolphin Deaths, and Labor Day Travel <p><em>Governor Martin O'Malley will speak at today's commemoration of the 50th anniversary of the March on Washington.&nbsp; More on today's events, plus: Grand Prix-related road closures, dolphin deaths, Labor Day travel projections, a bid for the 2024 Olympics, and more</em>. Wed, 28 Aug 2013 12:15:41 +0000 Nathan Sterner 1497 at