News flash! Events that changed big business policies By: CNBC.com News November 10, 2015 at 01:13 AM EST Social media has flourished to the point where it can trigger businesses to change their policies. CNBC takes a look at some of these major events. Read More >> Related Stocks: Amazon.com Apple J Sainsbury ADR McDonald's Corp Target Corp Tesco Plc ADR Wal-Mart Stores, Inc.