Obama teased over L.A. traffic jams

Presidential motorcades cause major traffic jams — especially in big, freeway-bound cities like Los Angeles.

President Obama's arrival in L.A. on Wednesday — at evening rush hour no less — generated a barbed joke from comedian Conan O'Brien as he hosted at a charity dinner for the USC Shoah Foundation.

"You left Washington six hours ago," O'Brien told Obama. "But I left Burbank seven hours ago."