Facebook shares closed at a record high Friday even as the broader market for tech stocks slipped. Company's valuation briefly touches $500 billion and ends Friday at $499.8 billion. Combined with Amazon's

More than half the continental US is within range of latest North Korean missile test, defense experts say North Korea on Friday tested an intercontinental ballistic missile, which landed in the Sea of

In China, Big Tech Confronts New Walls Tech giants from Amazon to WhatsApp are finding it tougher to crack China's market. Regulation and censorship are posing stiff challenges to the companies. Even Facebook