When an officer kills someone with his or her firearm, an investigation almost always follows. Las Vegas Review-Journal reporter Lawrence Mower explains how districts respond when incidents occur, and former police officer David Klinger explains how officers determine when to use deadly force.

U.S. Chamber of Commerce President Tom Donohue says he is "disappointed" that some GOP presidential candidates are attacking front-runner Mitt Romney for his work at Bain Capital. The head of the nation's most powerful pro-business association calls Romney's business record "damn good."

New state laws will require millions of voters to show photo identification when they cast ballots this year. Republicans claim the measures will prevent election fraud. Democrats and activists oppose them, arguing that they are unnecessary because voter fraud is rare.

Steven Rattner, the Wall Street financier who oversaw the Obama Administration's successful rescues of General Motors and Chrysler, now comes to the aid of some other beleaguered members of corporate America — Mitt Romney in his former role as a private-equity CEO, and Bain Capital, the company the Republican presidential candidate once ran.

Texas Gov. Rick Perry announced his presidential campaign in South Carolina last August, but it may soon come to an end in the same state where it started. Ben Philpott of KUT News reports on Morning Edition that Perry hopes to make a stand in the Palmetto State.

In a unanimous decision, the Supreme Court has ruled that ministers could be fired without regard to civil rights laws. But on the more difficult question of determining who is a minister, the court was equivocal, saying that would have to be determined on a case-by-case basis.

Texas Gov. Rick Perry finished in fifth place in the Iowa caucuses. He skipped the New Hampshire primary, where he finished sixth, to campaign in South Carolina. With nine days to go before the first-in-the-South contest, Perry hopes to make a stand in the Palmetto State.

Workers in the private equity industry are miffed that their business is becoming a dirty word in the presidential campaign. The indignation at such attacks runs especially deep at Bain Capital in Boston, the private equity firm started by Republican front-runner Mitt Romney.

Nowhere are oranges more important than in Florida. The state grows most of the oranges consumed in the United States. So any scare about tainted foreign fruit is bound to trickle down to the domestic industry.

The Food and Drug Administration is stepping up testing of orange juice after finding traces of a chemical fungicide that is not approved for use in the United States. Regulators are holding 13 shipments of imported juice at ports until tests are completed. Even so, officials say the fungicide residue does not present a public health threat.