On April 11, 2012, PricewaterhouseCoopers released its 2011 Securities Litigation Study, entitled “The Ever-Changing Landscape of Litigation Comes Full Circle” (here). According to the study, “we’ll remember 2011 as the year that plaintiffs’ attorneys’ renewed their focus on mergers and acquisitions (M&A) and foreign issues (FIs), specifically those based in China.” PwC’s April…