Mahmoud Khalil filed a lawsuit Monday, accusing the federal government of conspiring with private pro-Israel advocates to “terrorize” and jail him and other Palestinian activists to silence their activism under a civil rights suppression law known as the KKK Act. The 138-page complaint details the process through which, Khalil alleges, right-wing pro-Israel groups partnered with the U.S. State Department and the Department of Homeland Security to target Palestinian activists for detention. It argues that the Heritage Foundation developed a plan with other Pro-Israel groups, such as Betar and Canary Mission, to arrest, detain, and deport activists without citizenship who were Palestinian...