Attorney General Eric Holder warned his Scottish counterpart in June that the man convicted of blowing US-bound Pan Am Flight 103 out of the sky could get a hero’s welcome if allowed to return to Libya, according to the head of a group representing the families of victims. Holder’s warning to Scotland’s justice secretary, Kenny MacAskill, came nearly two months before the bomber, Abdel Baset al-Megrahi, was released from a Scottish prison and greeted by a cheering crowd on his arrival in Libya last week. Notes prepared ahead of Holder’s June 26 conversation with MacAskill were provided to the Associated...