If you’ve been in on any online debates, you’ve probably heard of the ad hominem argument, an “argument against the person” in other words, attacks on someone’s character. Here’s one formal definition ...

Yesterday, The Huffington Post yanked conservative firebrand Andrew Breitbart from the front page of its publication, citing his "false ad hominem" attacks made in a Daily Caller interview as the ...

Emanuel Derman makes some interesting points in his look at misguided mathematical modelling (22 October, p 32). But his essay is scarred by the inclusion of a bizarre ad hominem attack on Richard ...