TEHRAN, Iran (AP) — While tensions remain high between the U.S. and Iran, there's at least one American that state radio in Tehran invites on the air each week for its millions of listeners. It's just that he's a fictional insurance fraud detective who's been on the case since 1949. “Yours Truly, Johnny Dollar,” a radio program created by CBS that later found a devoted listenership in Iran for a Farsi-language version under Shah Mohammad Reza Pahlavi in the 1960s, has returned to Iranian radio.