 Becky Sullivan, NPR News, Minneapolis. Authorities in Bolivia say they've arrested four more people in connection with this week's failed coup. A top general has been arrested in the attempted overthrow, but he is alleging Bolivian President Luis Arza asked him to do something to improve his flagging popularity with voters. He provided no evidence for the claim. The Bolivian president is rejecting the accusation, saying he knew nothing about it. I'm Corva Coleman, NPR News.