By ROBERTO FABRICIO
Herald Staff Writer

    Federal authorities have issued a warrant for the arrest of Dr. Orlando Bosch, a Cuban who once received a 10-year sentence for using the telegraph to threaten other nations and for firing a makeshift cannon at a Polish ship off MacArthur Causeway.
    The warrant, issued by the U.S. Parole Board in Washington early in July, is for the technical violation of Bosch's parole, which still has four years to run. But authorities say they also want to question Bosch about a number of terrorist actions which he admitted in an interview last month.
    The 48-year-old former pediatrician turned revolutionary was released from the federal prison in Marion, Ill., Dec. 15, 1972 after serving four years. He kept a steady monthly date with parole officers in Miami through June of this year, but failed to keep his July 1 appointment.
    "WE BASICALLY would like to know where Mr. Bosch is," his parole officer said. "We don't know where he is and that is not supposed to happen."
    In an interview with the Cuban exile magazine Replica, early in July Bosch is quoted as saying he was in Venezuela, where he is expected to launch a last-ditch effort to fight Cuban dictator Fidel Castro.
    Bosch, according to the interviewer, admitted that his organization, Accion Cubana, had committed a number of terrorist activities.