The control systems of Iran’s Bushehr nuclear plant have been penetrated by a computer worm unleashed last year, according to a foreign intelligence report that warns of a possible Chernobyl-like disaster once the site becomes fully operational.Russia’s envoy to NATO, Dmitry Rogozin, also has raised the specter of the 1986 reactor explosion in Ukraine, but suggested last week that th...

A train crashed into a crowded bus in eastern Ukraine on Tuesday, killing 40 people and leaving 11 in critical condition, officials said.The Interior Ministry said the accident occurred outside the town of Marhanets in the Dnipropetrovsk region after the bus attempted to cross the track, ignoring a siren that indicated an oncoming train.Rescuers, medics and investigators are working at the scene o...