BOSTON (Reuters) - Security experts discovered a highly complex computer virus in Iran and the Middle East that they believe was deployed at least five years ago to engage in state-sponsored espionage. Evidence suggest that the virus, dubbed Flame, may have been built on behalf of the same nation that commissioned the Stuxnet worm that attacked Iran's nuclear program in 2010, according to Kaspersky Lab, the Russian cyber security software maker that claimed responsibility for discovering the virus. Iran's National Computer Emergency Response Team also said Flame might be linked to recent cyber attacks that officials in Tehran have said...