Mary Dooe

In an age of skyrocketing gas prices, what can we do to make our cars more fuel efficient? The Panama Canal is getting a makeover. In two years, it'll be able to handle ships that carry twice the cargo they handle now, and that could mean big things for ports on the East Coast of the United States. And Paypal is expected to announce tomorrow that it will launch a service where anyone can send or receive credit card and debit card payments over a smartphone.

Illinois governor Pat Quinn will appeal FEMA's decision to deny his state disaster aid in the wake of those deadly tornadoes a few weeks back. Voters in Mississippi and Alabama head to the polls today, and we take a closer look at the economic policies of Rick Santorum. Southern California ports currently receive most of the imports shipped from Asia. But that could change with a major expansion of the Panama Canal. And tonight, the new NBC TV show "Fashion Star" debuts, and the focus is more on retail than high fashion.

At the end of March, funding for more than 100,00 highway and transit projects dries up unless Congress can agree on an extension. We get another look at people struggling one year after the Fukushima disaster in Japan. And NBC experiments with a new kind of 'Must See TV,' stacking its Monday night line up.

It's deadline day -- again -- in Greece, but if all goes well, we'll get past this hurdle in the European Debt Crisis and probably move on to another one. For the first time in 15 years, Peyton Manning is no longer an Indianapolis Colt. In China, the maker of the iPad's lawyers are fighting a Chinese court decision that ruled Apple doesn't own the trademark for the name iPad in China. And the city of Chattanooga, Tenn. wants to join a growing list of U.S. cities with its own typeface, to be used in everything from stationary to street signs.

Super Tuesday wrapped up last night, and the economy once again emerged as the leading issue of that election day. In Washington state, emergency rooms are struggling with Medicaid payment plans. A federal jury in Texas has convicted Allen Stanford of defrauding investors to the tune of $7 billion in a Ponzi scheme. And actor Steven Van Zandt tells about about the current state of television.

Super Tuesday is upon us, but even candidates who are cash-rich thanks to super PACs weren't able to get on the ballot in some states. NFL investigators met yesterday with a former New Orleans Saints defensive coordinator, who has apologized for running a bounty scheme that rewarded players for injuring opponents. China's announcement that its economy will have slower days ahead set global markets into a tizzy yesterday; investors are now worried dark days are ahead for everyone else, too.

President Obama has proposed giving the IRS an 8 percent budget boost in the hopes of bringing in more revenue to the government. We're just a day away from Super Tuesday, when voters in 10 states will choose who they want the Republican presidential nominee to be. The city of St. Louis is trying to get control of its police department back from the state of Missouri. And today, the L.A. Times will follow in the footsteps of the New York Times and Wall Street Journal by starting to charge to access some of the paper online.

A mild winter in many parts of the country has helped some businesses, like construction, while at the same time hurting others. Senator Tom Harkin of Iowa explains why we should get rid of the dollar bill once and for all. Russians will vote on Sunday in the country's presidential election and late tonight, United and Continental airlines are merging -- their reservation systems.