BEIJING (AP) — Authorities are investigating rice mills in southern China following tests that found almost half of the staple grain in one of the country's largest cities was contaminated with a toxic metal.

MOORE, Okla. (AP) — Search and rescue crews worked through the night after a monstrous tornado barreled through the Oklahoma City suburbs, demolishing an elementary school and reducing homes to piles of splintered wood. At least 51 people were killed, including at least 20 children, and those numbers were expected to climb, officials said Tuesday.

NEW YORK (AP) — Thomas Sohmers, 17, of Hudson, Mass., has been working at a research lab at the Massachusetts Institute of Technology since he was 13, developing projects ranging from augmented reality eyewear to laser communications systems. This spring, his mom, Penny Mills, let him drop out of 11th grade. She says she "could see how much of the work he was doing at school wasn't relevant to what he wanted to learn."

PHOENIX (AP) — When Jodi Arias addresses the jury in her murder trial one more time, the big question will be whether she pleads for mercy or repeats what she told a TV reporter minutes after her conviction: She would rather be executed than spend the rest of her life in prison.

WASHINGTON (AP) — Lawmakers are getting their first chance to question the former head of the Internal Revenue Service, the man who ran the agency when agents were improperly targeting tea party groups.

WASHINGTON (AP) — People who falsely claim they have received a military medal in order to obtain money or government benefits could face up to a year in jail under legislation that easily passed the House Monday.

WASHINGTON (AP) — Apple Inc. employs a group of affiliate companies located outside the United States to avoid paying billions of dollars in U.S. income taxes, a Senate investigation has found.