Carl Icahn criticizes eBay, Bill Ackman-again By: CNBC.com News March 10, 2014 at 14:04 PM EDT Activist billionaire investor Carl Icahn digs in on his criticism of eBay's management and weighs in on Bill Ackman again. Read More >> Related Stocks: Amazon.com Herbalife Ltd MasterCard New York Times Company Visa eBay