Express Scripts, Medco fall on merger concernsShares of Express Scripts Inc. and Medco Health Solutions Inc. fell Monday on reports that antitrust regulators are deciding whether or not they will try to block Express Scripts' purchase of Medco.Reuters ...Associated Press via Yahoo! Finance - Feb 06 01:59pm Skepticism grows around Medco/Express Scripts dealObjections to Express Scripts' $29 billion plan to buy rival pharmacy benefits manager Medco Health Solutions are accumulating as U.S. antitrust regulators weigh whether they have enough evidence to stop ...Reuters via Yahoo! Finance - Feb 06 11:54am Skepticism grows around Medco/Express Scripts dealWASHINGTON (Reuters) - Objections to Express Scripts' $29 billion plan to buy rival pharmacy benefits manager Medco Health Solutions are accumulating as U.S. antitrust regulators weigh whether they have enough evidence to stop the megamerger. The Food Marketing Institute, which represents the biggest grocery chains, sent a letter to the Federal Trade Commission on February 2 saying the merged ...Reuters via Yahoo! News - Feb 06 11:54am Scripts - News Images23 News Images