BOSTON (Reuters) - Former Republican presidential hopeful Mitt Romney endorsed erstwhile rival John McCain on Thursday and urged Republicans to unite behind him in a gesture that could help McCain with disgruntled conservatives.
NEW YORK (Reuters) - The lives of 22,000 patients could have been saved if U.S. regulators had been quicker to remove a Bayer AG drug used to stem bleeding during open heart surgery, according to a medical researcher interviewed by CBS Television's 60 Minutes program.
WASHINGTON (Reuters) - President George W. Bush called Africa a "continent of potential" on Thursday as he prepared to visit one of the few regions where he can claim foreign policy successes in a legacy dominated by the Iraq war.
DEKALB, Illinois (Reuters) - A black-clad man fired into a lecture hall packed with students at an Illinois university on Thursday, killing five people and wounding 18 before shooting himself dead, police and college officials said.
CHICAGO (Reuters) - Genes that helped early humans adapt to cold climates may be driving metabolism-related diseases such as obesity or diabetes in many countries, U.S. researchers said on Thursday.
SEATTLE (Reuters) - Microsoft Corp announced a management shake-up at its loss-making online division on Thursday, thrusting an outsider into a prominent position ahead of a proposed merger with Yahoo Inc .
CHICAGO - A shooting Thursday at a suburban Chicago university left five people dead, including the gunman, US media reported, citing police officials.
WASHINGTON (Reuters) - The Pentagon plans to shoot down a disabled U.S. spy satellite before it enters the atmosphere to prevent a potentially deadly leak of toxic gas from the vehicle's fuel tank, officials said on Thursday.
SAN FRANCISCO (Reuters) - Baseball home run king Barry Bonds tested positive for steroids in November 2000, months before his record breaking 73-home run season, U.S. prosecutors said on Thursday.