Retired General David Petraeus, chairman of KKR Global Institute, right, speaks as David Rubenstein, co-chief executive officer of the Carlyle Group LP, listens during an interview on The David Rubenstein Show in New York, U.S., on Tuesday, March 28, 2017. Petraeus was among 14 retired military commanders who wrote a letter to House and Senate leaders condemning a bill that would make it easier for veterans with mental incapacity to buy or sell firearms. Photographer: Christopher Goodney/Bloomberg via Getty Images
