demonstration occurred. Afterwards, the March leaders accepted an invitation to the White House to meet with Kennedy and photos were taken. Kennedy felt that the March was a victory for him as well and bolstered the chances for his civil rights bill. Nevertheless, the struggle was far from over. Three weeks later on Sunday, September 15, a bomb exploded at the 16th Street Baptist Church in Birmingham; by the end of the day, four African American children had died in the explosion, and two other children were shot to death in the aftermath. Due to this resurgent violence, the civil rights legislation underwent some drastic amendments that critically endangered any prospects for passage of the bill, to the outrage of the president. Kennedy called the congressional leaders to the White House and by the following day the original bill, without the additions, had enough votes to get it out of the House committee. Gaining Republican support, Senator Everett Dirksen promised the legislation would be brought to a vote preventing a Senate filibuster. The legislation was enacted by Kennedy's successor President Lyndon B. Johnson, prompted by Kennedy's memory, after his assassination in November, enforcing voting rights, public accommodations, employment, education, and the administration of justice. Civil liberties In February 1962, FBI Director J. Edgar Hoover, who was suspicious of civil-rights leader Martin Luther King Jr. and viewed him as an upstart troublemaker, presented the Kennedy administration with allegations that some of King's close confidants and advisers were communists. Concerned by these allegations, the FBI deployed agents to monitor King in the following months. Robert Kennedy and President Kennedy also both warned King to discontinue the suspect associations. After the associations continued, Robert Kennedy issued a written directive authorizing the FBI to wiretap King and other leaders of the Southern Christian Leadership Conference, King's civil rights organization, in October 1963. Although Kennedy only gave written approval for limited wiretapping of King's phones "on a trial basis, for a month or so", Hoover extended the clearance so his men were "unshackled" to look for evidence in any areas of King's life they deemed worthy. The wiretapping continued through June 1966 and was revealed in 1968. Immigration During the 1960 campaign, Kennedy proposed an overhaul of American immigration and naturalization laws to ban discrimination based on national origin. He saw this proposal as an extension of his planned civil rights agenda as president. These