Security professionals in both the U.S. government and in private industry have long feared the prospect of a cyberwar with China or Russia, two states capable of launching destructive attacks on the computer networks that control critical assets such as the power grid or the financial system.
Now they face a new cyberthreat: Iran.
"[The Iranians] have all the resources and the capabilities necessary to be a major player in terms of cyberwarfare," says Jeffrey Carr, an expert on cyberconflict who has consulted for the U.S. Department of Defense.
A majority of U.S. Supreme Court justices signaled Wednesday that they will uphold at least part of Arizona's controversial immigration law. Four provisions of the law were blocked by a federal appeals court last year, and while even some of the court's conservatives expressed skepticism about some of those provisions, a majority seemed willing to unblock the so-called "show me your papers" provisions.
It's been 20 years since Los Angeles erupted in riots following the acquittal of four white police officers in the beating of black motorist Rodney King. There have been many changes in the city since those days of fire, looting and public discord, but perhaps the biggest changes can be seen in L.A.'s police department.
On a drive around the heart of South Central L.A., there are still plenty of weed-filled lots where businesses that burned down in the riots used to stand. There's also still a lot of crime.