Photo Gallery: The Future of War

The Mossad, Israel's foreign intelligence agency, attacked the Iranian nuclear program with a highly sophisticated computer virus called Stuxnet. The first digital weapon of geopolitical importance, it could change the way wars are fought -- and it will not be the last attack of its kind. Here, Iranian President Mahmoud Ahmadinejad visits the Natanz uranium enrichment facility, which was targeted by Stuxnet (April 2008 photo).