CNN explains that "Scientology has been recently diversifying its outreach to include other religions and ethnic groups", and as well as Kennedy, we meet Rev. James McLaughlin, of the Wayman Chapel African Methodist Episcopal Church in Houston, who extolls the virtues of the Scientologist anti-addiction Narconon programme. According to Kennedy, he was able to match The Way to Happiness to Biblical passages.

One wonders if Scientology is following the lead of Rev Moon, whose Unification Church has been making links with various religious groups through front-organisations such as the Universal Peace Federation. The Unification Church has also been particularly targeting African-American church leaders, at least one of whom removed a cross from his church on advice from Moon (Ed Brayton has more on Moon's church links in Michigan).

Both groups are also active in the "Holy Land" - as I blogged last year, Moon is building an inter-faith centre in Galilee,  while Hubbard's The Way to Happiness has been widely distributed among Israelis and Palestinians, with some official support. According to the Scientologist magazine Freedom:

With the help of these and grants from the International Association of Scientologists, in the last three years, the Association has distributed more than 1.5 million The Way to Happiness booklets to Palestinians and Israelis...Public opinion surveys conducted by Hebrew University and a Palestinian research center have found that as the booklets are distributed, public support for peace builds among both Israelis and Palestinians.

Details about the book itself can be seen here.