Marjory Stoneman Douglas High School students Emma Gonzalez, left, David Hogg, Cameron Kasky, and Alex Wind, participate in a panel discussion about guns, March 20, 2018, at Harvard Kennedy School's Institute of Politics, in Cambridge, Mass.
Marjory Stoneman Douglas High School students Emma Gonzalez, left, David Hogg, Cameron Kasky, and Alex Wind, participate in a panel discussion about guns, March 20, 2018, at Harvard Kennedy School's Institute of Politics, in Cambridge, Mass. Steven Senne AP
Marjory Stoneman Douglas High School students Emma Gonzalez, left, David Hogg, Cameron Kasky, and Alex Wind, participate in a panel discussion about guns, March 20, 2018, at Harvard Kennedy School's Institute of Politics, in Cambridge, Mass. Steven Senne AP