Whenever Mike Bickle discusses the so-called "prophetic history" of the International House of Prayer (IHOP-KC), he often brings up the supposed prophecy of drought as predicted by Bob Jones. As it turns out, that prophecy may not only be completely false, but the account regarding it may have been altered over time.
You can view more information at this link (H/T to Crosswise).
This would not only demonstrate Mike Bickle and Bob Jones are false prophets (though, of course IHOP-KC followers have a few ways around that), but demonstrate that they are editing the facts of their movement's history and presenting to their followers an "approved" version of it. They certainly aren't the first group to do this - the Jehovah's Witnesses, for example, altered the account of what they expected for the year 1975, in order to hide the false prophecy that Armageddon would occur. This is, in fact, one of the tell-tale signs of a cult.