Washington: Former US Vice President Joe Biden has warned that “hate is on the rise again” in America and called for efforts to fight it. Joe Biden made the remarks on Sunday when delivering a speech in Birmingham, Alabama to commemorate the 56th anniversary of a deadly bombing at the city’s 16th Street Baptist Church, reports Xinhua news agency. On September 15, 1963, a bomb blast at the church killed four African-American girls during church services, which sparked national outrage. Three former Ku Klux Klan members were convicted of murder for the bombing. (IANS)