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...Tom Costello speaks with astronauts Garrett Reisman and Greg Chamitoff, who are about to trade places on board the International Space Station. Reisman returns home after three months in space, ...

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June 9: With average gas prices hovering above $4 a gallon, some employers are forced to help cover their workers' commutes. NBC's Tom Costello reports.

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June 7: While crude oil trades at record levels, a barrel of jet fuel is even more expensive, leaving airlines in crisis. NBC’s Tom Costello reports.

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...lback since the oil crisis of the 1970s, Americans drove 1.4 billion fewer highway miles in April than they did a year earlier, with 20 billion fewer miles traveled overall. NBC's Tom Costello ...

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May 29: NBC's Tom Costello recaps his cross-country journey reporting on gas prices.