1: The mainstream Churches of Christ are a mostly harmless denomination of Christianity.
2: The less-than-sane International Churches of Christ are a branch of the above, founded by Kip McKean. The ICoC is also known as the Boston Church of Christ, the Crossroads movement, Campus Advance (as a college club), the UpsideDown Club (a youth movement), and various other names. The ICoC is considered by many to be a cult, though I that term is misused, IMHO. I prefer to call it a "pseudo-Christian desreuctive religious group"