he U.S. on Tuesday carried out its first federal execution in almost two decades, killing by lethal injection a man convicted of murdering an Arkansas family in a 1990s plot to build a whites-only nation in the Pacific Northwest. The execution of Daniel Lewis Lee, over the objection of the victims’ relatives and following days of legal wrangling and delays, revived the debate over capital punishment during a time of widespread social unrest. *** Lee, 47, of Yukon, Oklahoma, professed his innocence just before he was executed at the federal prison in Terre Haute, Indiana. “I didn’t do it," Lee...