[A] jury trial [is underway in the US]...on the alleged murder of two Afghan civilians on 4 May 2009 by two former employees of a subsidiary of Blackwater [now Xe], the private military company...Human Rights First...says that [such] incidents show why the government needs to strengthen the rules on oversight and coordination over private security contractors in war zones...Given that the US government has been ramping up the number of armed contractors in both Afghanistan and in Iraq, the Obama administration would be well-advised to pay attention to the Human Rights First report. [also refers to Paravant (part of Blackwater, now Xe)]