US STOCKS-Nasdaq leads Wall St lower on economic worry

Amazon.com (AMZN.O: Quote, Profile, Research) lost 5 percent to $192.51, along with "high-beta" names including Priceline.com (PCLN.O: Quote, Profile, Research), down 3.3 percent at $503.38, and Netflix (NFLX.O: Quote, Profile, Research), down 3.8...