PoisoningTheWell

From 911Encyclopedia:

In March 2002, many independent 911 investigators and 911-Skeptics realised, that some (dis-) informations, leaving out other important details, might have been planted on purpose to discredit them. The first famous case was Hunt the Boeing. The only purpose was to turn "bombshell" into "red herrings". This phenomena was described as "Poisoining the well", an old secret service trick.