Politicians need to keep their voters happy and voters don't like to be offended. But it turns out, dishing out a little offense once in a while gives politicians a real edge.

American voters want scientists to solve their problems out of sight and out of mind. They certainly don't want them in office.

Sometimes angry calls for more civility in political and social discourse are necessary. And sometimes they're just a muzzle for partisan bloviators who can dish it out but can't take it.

Good regulation is based on facts and peer-reviewed studies, not scaremongering and chemophobia.

Believe it or not, over the long term, political discourse is getting a lot less nasty on average.