At least 400 children have been killed in 11 months of violence in Syria and almost the same number detained, the United Nations Children's Fund (UNICEF) said on Tuesday.

"As of the end of January, 400 children are dead and more than 400 have been detained," UNICEF spokeswoman Marixie Mercado said at a briefing.

A group linked to the hacker network Anonymous on Saturday said it had attacked the Swedish government's website, bringing it down for periods of time by overloading it with traffic.

CyberForce used Twitter to claim responsibility, saying "We have succeeded in the attack against the government."

Figuring out how to pack a processor and other electronics into a machine gun bullet has been a challenge for engineers at Sandia National Laboratories, so weapons experts say the miniature guidance system the lab has developed is a breakthrough.

Three years in the making, the bullet prototype represents another step toward a next-generation battlefield that scientists and experts expect to be saturated with technology and information.

Texting while driving, speeding and back-seat hanky-panky aren't all that parents need to worry about when their kids are in cars: Add secondhand smoke to the list.

In the first national estimate of its kind, a report from government researchers says more than 1 in 5 high school students and middle schoolers ride in cars while others are smoking.

For decades, tourists visiting this popular Adirondack village could gape at the skeletons of soldiers from nearby French and Indian War sites. Then in 1993, a somber reburial ceremony was held to finally put the remains to rest.

Only that never happened.

For the first time, 21st-century audiences are able to hear the voice of Otto von Bismarck, one of the 19th century's most important figures.

The National Park Service announced this week that the German chancellor's voice has been identified among those found on a dozen recorded wax cylinders, each more than 120 years old, that were once stored near Thomas Edison's cot in his West Orange, New Jersey, lab. They include music and dignitaries, including the voice of the only person born in the 18th century believed to be available on a recording.

Dubai's famed indoor ski slope is about to get some Gulf competition. Saudi developers say they plan a "snow village" inside a new mall in Riyadh.

A statement on company websites Monday says the latest snow-in-the-desert attraction will be part of an entertainment area in the mall, which is scheduled to be opened later this year in the Saudi capital.

World stock markets were mixed Monday as fears of a Greek debt default dampened the euphoria from a stronger-than-expected increase in U.S. jobs.

Benchmark oil fell to near $97 per barrel while the dollar rose against the euro and the yen.

Egypt-based investment bank EFG Hermes says that the prosecutor general has banned its chairman from travel.

EFG, the Arab world's largest publicly traded investment bank, said Monday in a statement on the Egyptian Exchange's website that it learned of the decision affecting Yasser el-Mallawany on Sunday evening. The step often accompanies a possible criminal investigation.

Facebook's billionaire CEO Mark Zuckerberg calls himself a hacker.

For most people, that word means something malicious — shady criminals who listen in on private voicemails, or anonymous villains who cripple websites and break into email accounts.