Boxing great Muhammad Ali was hospitalised with a mild case of pneumonia that was caught early and should result in a short hospital stay, a spokesman said.

Two US men who sent millions of unsolicited pornographic emails have been sentenced to more than five years in prison as part of the first prosecution under a federal anti-spam law.

America’s CBS News has mounted an aggressive defence of its report about President George Bush’s service in the Air National Guard, saying broadcast memos questioned by forensic experts came from “what we consider to be solid sources”.