The Department of Justice will perform an “in-depth” investigation of AT&T’s proposition to acquire T-Mobile USA, Reuters is reporting. Such an investigation comes as no surprise, as one FCC official assured the public on April 14th that the acquisition would get a thorough review from government antitrust and communications officials. Bloomberg says that the DoJ can issue a decision in as little as 30 days, however, a “second request,” could mean that the investigation will take longer. AT&T announced its plan to purchase T-Mobile USA from Deutsche Telekom for $39 billion on March 20th. Despite Sprint’s claims that the acquisition will stifle competition in the U.S. wireless market, AT&T has argued that the deal will fuel economic growth and create new jobs.