Show Plot Against Opera Singers Is Thwarted BUFFALO B N. N Y X Nov 19 INS INS INS- An extortion plot directed against Lily Pons Rosa Ponselle Carmella Ponselle and other famous o pera opera stars was revealed here today with arrest arrest of or Peter Koteras 41 accused with three other men now in custody cus cus cus- tody The plan hatched In in the North Dako Dakota 8 state prison Fargo N N. D D. aimed to blackmail the singers singers' by bythe bythe bythe the use of fake photographs No attempt had yet be been n made to get money from the intended vic vic- tims |