It's no accident that the track feels fast to runners. The Italian company that designed the track says its goal is to take "human speeds to levels never reached before."

The attacker grabbed the officer's gun and fatally shot himself, the agency adds. The officer was identified as George Gonzalez, a veteran who served in Iraq, by the Pentagon Force Protection Agency.

Should Gov. Andrew Cuomo be impeached or choose to resign, New York Lt. Governor Kathy Hochul would be next in line and would become the state's first woman to hold the position.

Journalist Peter Bergen visited bin Laden's compound in Abbottabad, Pakistan, before it was demolished. His new book, The Rise and Fall of Osama bin Laden, draws on materials seized in the raid.