AD HOMINEM - Latin for "to the man" - attacking the arguer and not the argument. ARGUMENT FROM AUTHORITY - (e.g., President Nixon should be re- elected because he has a secret plan to end the war in SE Asia - but because it was secret, there was no way for the electorate to evaluate it on its merits; the argument amounted to trusting him because he was President: a mistake, as it turned out. ARGUMENT FROM ADVERSE CONSEQUENCES (e.g., A God meting out punishment and reward must exist, because if He didn't, society would be much more loawoless and dangerouts. Or...The defendant in a widely publicized murder tiral must be found guilty; otherwise, it will be an encouragement for other men to murdert their wives) APPEAL TO IGNORANCE - the lcaim that whatever has not been proved false must be true and vice versa.There is no compelling evidence that UFOs are not visiting the Earth; therefore UFOs exits - and there is intelligent life elsewhere in the Universe. BEGGING THE QUESTION, also called assuming the answer (e.g., We must institute the death penalty to discourage violent crime. But does the violent crime rate in fact fall when the death penalty is imposed? OBSERVATIONAL SELECTION, also called the neumeration of facorable circumstances, or as the philospher Francis Bacon described it, counting the hits and forgetting the misses. STATISTICS OF SMALL NUMBERS - a close relative of observational selection e.g., "They say 1 out of every 5 people is Chinese. How is this possible? I know hundreds of people, and none of them is Chinese" NON SEQUITUR - Latin for "It doesn't follow" e.g., "Our nation will prevail because God is great. But nearly every nation pretends this is true. POST HOC, ERGO PROPTER HOC - Latin for "It happened after, so it was caused by. e.g., "I iknow of a 26 year-ole who looks 60 because she takes contrace;tive pilss. OR.."Before women got the vote, there were no nuclear weapons" EXCLUDED MIDDLE or FALSE DICHOTOMY - considering only the two extremes in a continuum of intermediate possibilities. Sure, take his side; my husband's perfect; I'm always wrong. OR either you love your country or you hate it. OR If you're not part of the solution, you're part of the problem.