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Mark Schultz pumps fuel into a special hydro-cell vehicle at Joint Base Pearl Harbor Hickam in Honolulu in this file photo
A special hydro-cell vehicle gets refueled at an alternative energy facility into hydrogen in Honolulu in this file photo
Tornado levels homes in Shawnee, Okla.
Tornadoes rumble through Plains, Midwest
Tea party enjoying 'I told you so' moment
Justin Bieber: 'I should be taken seriously'
Most dangerous ways to earn a living in U.S.
Five credit card fees you should never pay