US Futures Flat as Earnings Eyed By: CNBC.com News January 22, 2013 at 05:40 AM EST U.S. stock futures are pointing to a flat to negative open on Tuesday ahead of a series of earnings reports from bellwether companies, such as Google. Read More >> Related Stocks: Amtd Idea Group CSX Corp Google, Inc. International Business Machines Intuitive Surgical Johnson & Johnson Kansas City Southern Norfolk Southern Texas Instruments TravelersCompanies Verizon Communications