ST. LOUIS — A St. Charles man accused of buying automatic weapons and a Claymore mine and bargaining for grenades was indicted this week on four federal machine gun charges.Mousa M. Abuelawi, 22, of Franjoe Court, was originally arrested Dec. 29 and charged with three counts of illegal possession or distribution of a machine gun and conspiracy to violate machine gun statutes.The men met several times in the 5700 block of West Florissant Avenue, where Abuelawi worked. One of Abuelawi's co-workers, Thaed Abde Sumad, met with the men once, according to the indictment, and "stated he wants to buy as...