Cargill's merger with Agribrands International (NYSE: AGX) cleared a hurdle when the waiting period mandated by the Hart-Scott-Rodino Antitrust Improvements Act (HSR) expired. HSR requires the parties to mergers or acquisitions of a certain magnitude to file documents with the Federal Trade Commission (FTC) and the Department of Justice (DOJ) and to wait 30 days before consummating such transactions, giving authorities time to determine whether filing additional information is warranted. The HSR waiting period expired at 11:59 p.m. Saturday, Jan. 20, with no requests from the FTC or the DOJ for more information.