Ridership is at an all-time high along its short-haul corridors. But the story is quite different on the longer routes.
Ramped-up oil and gas output, more efficiency and greater use of alternatives, including geothermal, push the US closer to energy independence.
This tipping point is already hitting the country's most populated areas. As gas prices surge, some consumers may cut spending in other areas.
The electric-car maker has been in the news for days after a scathing newspaper report. It has an important earnings announcement Wednesday.
Some analysts are puzzled by the increase, and one says the national average could easily top $4 a gallon this spring.
The electric-car maker defends its vehicle after a scathing newspaper report hurt the company's stock and credibility.
Some 10% of the country's ethanol plants have gone idle, fueling speculation about what's next for the controversial industry.
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MONEY & POLITICS
Breaking up big banks is an untested solution to the too big to fail problem that attempts to isolate and dismantle large, troubled institutions while protecting the rest of the economy.
The IRS is struggling to combat identify thieves who file fraudulent tax returns in the names of older residents who don't need to file.