These kind of experiments I find a bit cagey with the use of college students. Throw in a few dock workers, teenagers and DMV employees and lets see what shakes out. Still, I like some of the theory:
Once again, they found that the angry subjects were better able to discriminate between strong and weak arguments than the ones who were not angry—suggesting that anger can transform even those people who are, by disposition, not very analytical into more careful thinkers.
Does being angry boil away the superfluous and leave the critical? This is begging for follow up studies.