( April 19, 2013) -- Several of the key antitrust players participated in their first performance oversight hearing on Capitol Hill in a 90-minute session on April 16 that covered lots of territory. Sen. Amy Klobuchar (D-Minn.) presided at such a session for the first time since becoming chair of the subcommittee earlier this year. Likewise, FTC Chairwoman Edith Ramirez and Assistant Attorney General of the Antitrust Division William Baer got a taste of civil but persistent questions during their first oversight hearing since assuming office....