NYC Mayor: Copter to U2 Show Not 'Green'

New York City Mayor Michael Bloomberg admits that taking a helicopter to the U2 show might not have been the most environmentally friendly way to travel.

The billionaire - who likes to portray himself as a national environmental leader - travels frequently by helicopter and private plane, but rarely talks about it.

It only came up because his pilot had made a test run to Giants stadium on Thursday before he was scheduled to fly the mayor there to see U2 later that evening.

Authorities say the pilot landed in the shuttle bus parking area by mistake.

Bloomberg was asked Friday whether flying by helicopter wastes a lot of energy.

He says, "I suppose you could say that," but adds it would also be more energy efficient to swim across the Hudson River.