Card-stacking, also known as specia

Card-stacking, also known as special pleading, ignores evidence on the other side of a question.
From all available acts, people choose only those facts that show the best (or worst)possible case.
Many television commercials use this strategy. When three slim, happy consumers praise a diet plan,
only at the very end of the ad does the announcer say---in a very low and speedy voice---that results vary.
Indeed, even that statement is vague and uninformative.