U.S. investors sat on the sidelines again on Tuesday ahead of tomorrow's decision on short-term interest rates from the Fed. Most hope the central bank will offer clues as to the pace of rate hikes this year. Crude oil also pressured markets, closing at its lowest since March 4. Shoe retailer DSW (DSW) closed higher after quarterly earnings came in double estimates. However, margins were squeezed as the company relied heavily on discounts and promotions to boost sales over the holiday quarter. CBS (CBS) is looking to unload its radio business in a strategic spinoff or sale. CEO Leslie Moonves said the company will explore all options and approach a sale just as carefully as it did for its outdoor ad business two years ago. TheStreet's Keris Lahiff has details from Wall Street.