In November 2012 , HBO aired a four-part documentary titled '' Witness '' , each part of which is devoted to covering photojournalists in four conflict regions : Juarez , Libya , South Sudan and Rio de Janeiro . On March 28 , 2013 , the channel premiered the Alexandra Pelosi-directed documentary '' Fall to Grace '' , about former New Jersey Governor Jim McGreevey , who resigned from the post in 2011 following the revelation of an infidelity scandal that led McGreevey to come out as gay . On April 10 , 2013 , HBO aired '' 50 Children : The Rescue Mission of Mr. and Mrs. Kraus '' , a documentary about the story of Gilbert and Eleanor Kraus , a Jewish couple from Philadelphia who traveled to Nazi Germany in 1939 and , with the help of the B'rith Sholom fraternal organization , saved Jewish children in Vienna from likely death in The Holocaust by finding them new homes in Philadelphia . In April 2013 , the channel aired the documentary '' An Apology to Elephants '' , about the purported abuse and brutal treatment of elephants
The Holocaust
The Holocaust
HBO