Earnings and Europe Could Steer Markets as Low Yields Flash Warning for Stocks By: CNBC.com News July 23, 2012 at 20:44 PM EDT Corporate earnings reports will compete for attention with whatever Europe throws at markets Tuesday. Read More >> Related Stocks: 3M Co AT&T Inc Amazon.com Apple Atlantic Power Corp Boeing Co Caterpillar Chevron Corp Coca-Cola Company Exxon Mobil Facebook McDonald's Corp Merck & Co Netflix Starbucks Corp United Technologies Visa Zynga Inc Cl A