A federal appeals court today reinstated the prosecution of a group of Blackwater security guards charged...with manslaughter and weapons violations for their alleged roles in a shooting in Baghdad that killed more than a dozen civilians. In December 2009, Judge Ricardo Urbina of U.S. District Court for the District of Columbia dismissed the Justice Department prosecution of five guards, saying the prosecution was tainted through the improper use of compelled statements the defendants made to investigators...The D.C. Circuit remanded the prosecution with instructions for Urbina to determine what evidence the government presented against each defendant that was tainted and “in the case of any such presentation, whether in light of the entire record had shown it to have been harmless beyond a reasonable doubt.”...Four guards...face the potential for further prosecution in Washington federal district court.