Monday will mark 100 years since the Tulsa race massacre destroyed "Black Wall Street." Several events will take place over the weekend, including a visit by President Joe Biden. White supremacists could target the commemorative events in racially charged attacks, the DHS warned. Monday will mark 100 years since the Tulsa race massacre destroyed "Black Wall Street," and the US Department of Homeland Security has warned that white supremacist groups might target events commemorating it...... The Tulsa race massacre saw mobs of white residents attack Black residents and businesses in the Greenwood District of Tulsa, Oklahoma in 1921. Somewhere between...