Links to transcripts of these questionable speeches?
However, if I recall correctly, the King family has made most of what he said unavailable by using the copyright law, so there may not be much.
Both an audio recording and the transcript of King’s “Beyond Vietnam” speech is found here:
http://www.americanrhetoric.com/speeches/mlkatimetobreaksilence.htm
King’s speech was sponsored by “Clergy and Laymen Concerned About Vietnam “, a hard left antiwar group King belonged to that among other things accused American troops of war crimes.
“In February and April 1967 King delivered two speeches devoted entirely to Vietnam. On 25 February 1967, King delivered ‘‘The Causalities of the War in Vietnam.’’ He was eager to ensure his message would not be distorted and approached CALCAV to organize a public event where he could situate his position within the broader religious opposition to the war. CALCAV hired a publicist exclusively for the event, which was held at Riverside Church in New York City on 4 April 1967. King’s speech, which drew over 3,000 people, provided his most significant endorsement of the anti-war movement to date. CALCAV published and distributed 100,000 copies of the Riverside speeches and King accepted an invitation to be co-chair of the organization.
Later that month, CALCAV endorsed ‘‘Vietnam Summer,’’ a campaign promoted by King and the noted pediatrician Benjamin Spock to mobilize grassroots anti-war activists in preparation for the 1968 elections. Throughout the summer and fall, CALCAV chapters engaged in civil disobedience by protecting draft resisters, a departure from their more moderate tactics, such as petitions and vigils. The organization’s second national mobilization was timed to coincide with the February 1968 release of a study commissioned by CALCAV documenting American war crimes in Vietnam...”