Public Radio Exchange is adding a new weekly show to its development slate — Reveal, a joint production with the Center for Investigative Reporting. The hourlong series will be hosted by Al Letson of State of the Re:Union and feature investigative stories generated by CIR. The partners plan to develop relationships with other investigative organizations and news stations to bring in additional reporting. Reveal is scheduled to hit the air next year, so PRX and CIR are producing a pilot to be distributed to stations next week. Details about the reporting to be presented in the first show are under wraps, but CIR and PRX officials described it as an original national investigative piece dealing with veterans’ issues.