Motley Fool Money: 08.19.2011

The markets have another volatile week. Google makes a big acquisition. Wal-Mart reports big earnings. And a basketball game in China causes a big stir. Our analysts discuss those stories and share some stocks on their radar. Plus, Motley Fool retirement expert Robert Brokamp shares three retirement tips. Learn more about your ad choices. Visit megaphone.fm/adchoices