Intellectual Dishonesty: Slippery Slope (Logical Fallacy)

Definition:
In order to show that a proposition P is unacceptable; a sequence of increasingly unacceptable events is shown to follow from P. A slippery slope is an illegitimate use of the “if-then" operator.

Examples:

If we pass laws against fully automatic weapons, then it won't be long before we pass laws on all weapons, and then we will begin to restrict other rights, and finally we will end up living in a communist state. Thus, we should not ban fully automatic weapons.
You should never gamble. Once you start gambling you find it hard to stop. Soon you are spending all your money on gambling, and eventually you will turn to crime to support your earnings.
If I make an exception for you then I have to make an exception for everyone.

Proof: Identify the proposition P being refuted and identify the final event in the series of events. Then show that this final event need not occur as a consequence of P.

Intellectual Dishonesty

Intellectual dishonesty is the advocacy of a position which the advocate knows or believes to be false or clearly misleading, or is the advocacy of a position which the advocate does not know to be true, and has not performed rigorous due diligence to insure the truthfulness of the position. Rhetoric is used to advance an agenda or to reinforce one's deeply held beliefs in the face of overwhelming contrary evidence.

If a person is aware of the evidence and agrees with the conclusion it portends, yet advocates a contradictory view, they commit intellectual dishonesty. If the person is unaware of the evidence, their position is ignorance, even if in agreement with the scientific conclusion. If the person is knowingly aware that there may be additional evidence but purposefully fails to check, and then acts as though the position is confirmed, this is also intellectual dishonesty.