President William Howard Taft throws out the first ball of a baseball game for the Washington Senators in Washington in 1912. AP/FILE
President Franklin D. Roosevelt delivers the first pitch at the season opener between the Washington Senators and the Philadelphia Athletics in Washington in April 1938. AP/FILE
President Harry S. Truman prepares to throw out the ceremonial first pitch in Washington in April 1949. William J. Smith/AP/FILE
In April 1961, President John F. Kennedy throws the first pitch at Griffith Stadium in Washington. AP/FILE
At a Washington Senators game in Washington in April 1969, President Richard M. Nixon throws out the ceremonial first pitch. AP/FILE
Former President Jimmy Carter throws the first pitch in a baseball game beside Cuban President Fidel Castro (l.) in May 2002 in Havana, Cuba. Adalberto Roque/AFP/Getty Images/Newscom/FILE
Former President George Bush throws out the ceremonial first pitch to start the Texas Rangers vs Chicago White Sox game on opening day at The Ballpark in Arlington in April 2000. Newscom/FILE
Former President Bill Clinton throws the ceremonial first pitch at Camden Yards in April 1996 as the Baltimore Orioles open their season against the Kansas City Royals. Newscom/FILE
Former President George W. Bush throws out the first pitch at RFK Stadium in Washington for the start of the Washington Nationals home opener against the Arizona Diamondbacks in April 2005. Lawrence Jackson/AP/FILE
President Barack Obama throws out the first pitch before the All-Star baseball game in St. Louis, Mo., in July 2009. On April 5, Obama will deliver the first pitch at the Washington Nationals home opener, almost 100 years since then-President William Howard Taft threw out the first pitch at at Washington Senators game. Haraz N. Ghanbari/AP/FILE
A man with an official security pass gesticulated in a non-sensical fashion as dignitaries spoke to the crowd at Nelson Mandela's memorial service on Tuesday. As a result of the fake interpreter, the world's deaf and hearing impaired were excluded from the event.
A fake sign language interpreter took to the stage during a mass memorial for anti-apartheid leader Nelson Mandela, gesticulating gibberish before a global audience of millions and outraging deaf people across the world.