Three of al Qaeda's major websites for recruiting terrorists and communicating propaganda were shut down recently in an apparent case of counterterrorism hacking or possibly as a result of internal disputes among terrorists.
A spokesman from China met Wednesday with ambassadors from the United States and North and South Koreas to express "serious concern" over the escalating tensions.
American diplomats in Seoul, South Korea, sent another not-so-subtle reminder to North Korea's tubby tyrant Kim Jong-un that American strike fighters are lurking across the border - just in case his hot rhetoric morphs into hostile action.
Russia and China are calling for restraint on the Korean peninsula, where the North responded with midnight crisis meetings and more fist-shaking Friday to an overflight by U.S. nuclear-capable B-2 bombers.
China confirmed this week it will sell a new 1,000-megawatt nuclear reactor to Pakistan that the United States says would violate Beijing's obligations under a nuclear supplier control group.
China has grown its weapons sales by 162 percent over the last five years, allowing it to crack the top five list of arms exporters for the first time and fueling concerns of an arms race in Asia, a new report shows.
President Obama's decision to deploy additional missile interceptors at Alaska's Fort Greely reverses a decision he made in 2009 to scale back the number of active silos approved by President George W. Bush to blunt long-range nukes.
Beijing hotly denies accusations of official involvement in massive cyberattacks against foreign targets, insinuating such activity is the work of rogues. But at least one piece of evidence cited by experts points to professional cyberspies: China's hackers don't work weekends.
Chinese government denials of military hacking against the United States have sparked controversy in China from the political left and right.