It’s not sharia, it’s science. The world uses empirical data to inform many social and governmental policies, including national security. A Muslim travel ban, however, doesn’t survive rigorous statistical analysis, argues predictive analytics author Eric Siegel. A religious test for screening immigrants is far less effective, he says, than collecting information based on individual behavior such as personal and professional activities. Treating potential threats as individuals with specific histories, rather than identity groups, is key to beefing up security — at least that’s what three out of four analytics gurus might tell you.