The Ole Miss riot of 1962 left two civilians dead and 300 people injured, prompting President Kennedy to send in 3,000 troops to quell the riot. Meredith did finally enroll for a class, and Kennedy regretted not sending in troops earlier. Kennedy began doubting as to whether the "evils of Reconstruction" of the 1860s and 1870s he had been taught or believed in were true. The instigating subculture during the Ole Miss riot, and many other racially ignited events, was the Ku Klux Klan. On November 20, 1962, Kennedy signed Executive Order 11063, which prohibited racial discrimination in federally supported housing or "related facilities". Despite this, in Boston, the Boston Housing Authority (BHA) Board would continue to actively segregate the public housing developments in the city during the John F. Collins administration (1960–1968), with BHA departments engaging in bureaucratic resistance against integration through at least 1966 and the Board retaining control over tenant assignment until 1968. Both Kennedy and Robert Kennedy were concerned about King's ties to suspected communists Jack O'Dell and Stanley Levison. After Kennedy and his civil rights expert Harris Wofford pressed King to ask both men to resign from the SCLC, King agreed to ask only O'Dell to resign from the organization and allowed Levison, whom he regarded as a trusted advisor, to remain. In early 1963, Kennedy related to Martin Luther King Jr. his thoughts on the prospects for civil rights legislation: "If we get into a long fight over this in Congress, it will bottleneck everything else, and we will still get no bill." Civil rights clashes were on the rise that year. His brother Robert and Ted Sorensen pressed Kennedy to take more initiative on the legislative front. On June 11, 1963, President Kennedy intervened when Alabama Governor George Wallace blocked the doorway to the University of Alabama to stop two African American students, Vivian Malone and James Hood, from attending. Wallace moved aside only after being confronted by Deputy Attorney General Nicholas Katzenbach and the Alabama U.S. National Guard, which had just been federalized by order of the president. That evening Kennedy gave his famous Report to the American People on Civil Rights on national television and radio, launching his initiative for civil rights legislation—to provide equal access to public schools and other facilities, and greater protection of voting rights. His proposals became part of the Civil Rights Act of 1964. The day