On today’s show, April Glaser and Will Oremus first talk to two researchers who’ve uncovered new information about the way the U.S. government trains its facial recognition software. According to their findings, the government uses photos of immigrants, children, and even deceased prisoners to train their programs.  Then NBC News reporter Ben Collins talks about the role of online extremism in last week’s New Zealand attacks, specifically with regard to Facebook and other platforms that allow live broadcasting. Collins also discusses how the shooter left a manifesto riddled with white supremacist signals from online communities and the difficulty of reporting on these racist communities without broadening their reach. Learn more about your ad choices. Visit megaphone.fm/adchoices