Report said flood of counterfeit chips made it harder to spot. They were used, in some cases, on the latest aircraft.

Global network used social networking sites such as Facebook to distribute child pornography.

PTSD patients' brain area associated with decision-making, emotions, found to have shrunk.

Thirty-percent of malaria drug samples failed a test of their pharmaceutical ingredients.

She is really one of the people who has impressed me the most in my life, Trierweiler said about Michelle Obama.

Appears driver of passenger train overshot signal, hit goods train. Results of inquiry awaited, says railway ministry.

Alpha males are less likely to get sick and recover faster from injuries than those at the lower rungs of society.

England register 5-wicket win as both register half-centuries.

Beats top-seed Djokovic in straight sets, regains number-two ranking.

Nato formally agrees to Afghan transition plan despite questions over future. Fears over al Qaeda spreading.