NPR News

Another Tuesday, another critical day for the 2012 Republican presidential contenders.

This time the locations are Michigan, where most polls close at 8 p.m. ET, and Arizona, where voting ends at 9 p.m. ET. The story political junkies are watching closest: Will former Massachusetts Gov. Mitt Romney, a Michigan native, hold off a strong challenge there from former Pennsylvania Sen. Rick Santorum?

Also on the ballots, of course: former House Speaker Newt Gingrich and Rep. Ron Paul, R-Texas.

When he returned from Afghanistan and saw his partner waiting to welcome him home, "four years of pent-up emotion and secret love" just seemed to naturally lead to "what felt like an eternity kiss," Marine Sgt. Brandon Morgan told NPR this afternoon.

If you take a cholesterol-lowering drug called a statin, there's some new safety information you should know about.

A statin might be why you're having trouble remembering things or have been feeling confused, or at least that's what quite a few people taking the drugs have been saying.

For airlines, it ain't easy making a buck. In fact, even a penny is out of reach.

Airlines for America, a trade association for major U.S. carriers, says the industry earned less than half a penny in profits for every $1 of revenue generated during 2011.

The poor financial performance wasn't a fluke. Over the past decade, airlines have lost a collective $50 billion.

On Tuesday, the trade group said something has got to change. Association CEO Nicholas Calio sat down with journalists to explain a new industry push for a "National Airline Policy."

Mandatory DNA collection is fast becoming routine in the American criminal justice system. In many jurisdictions, just being arrested can mean having to submit a genetic sample to the national database. Federal law enforcement and 26 states now permit various forms of pre-conviction DNA sampling and more states are poised to follow suit.