This is what’s in the news for Wednesday, April 25, 2012. The Wall Street Journal reports U.S. gasoline-futures prices fell 16c a gallon over the past eight trading days, as more U.S. crude becomes available for refining into gasoline and concerns about a shortage of refining capacity fade. Reuters reports Facebook’s (FB) recent $1B acquisition of Instagram and its $550M purchase of patents from Microsoft (NYSE:MSFT) may add about a week to its IPO timing. Reuters also reports Human Genome Sciences (HGSI), which turned down an unsolicited $2.6B takeover bid by GlaxoSmithKline (NYSE:GSK), says it’s reviewing strategic alternatives, including selling the company. Finally, Bloomberg reports Wal-Mart (NYSE:WMT) may spend hundreds of millions of dollars investigating $24M in alleged Mexican bribes as the U.S. government considers if the company or its executives also broke the law by covering up an internal probe.