Bush administration officials reacted cautiously Tuesday to indications that Iran has improved its ability to enrich uranium as fuel for nuclear reactors, a crucial step toward nuclear weapons.
The NSA main computer network crashed for the first time, temporarily crippling U.S. intelligence capabilities. The outage has been attributed to the growing complexity of the NSA system and is a sign that the information revolution is outpacing the ability of the NSA to compete.
The Pentagon has stepped up cyber-defense and is planning cyber-combat. The FBI is still struggling to unravel Moonlight Maze, a massive assault on U.S. government computers that has been traced to Russia. Prodded by the White House, other agencies are also scrambling to protect America's electronic infrastructure from a daily digital barrage from around the world.