It strikes me that one thing that internet discussion has changed is this: people did not used to often, express a political opinion in casual society. Now our social interaction regularly include politics. And here I use "politics" in a broad way because most everything is political in one way or another.And when the media puts hot topics in front of us on the computer screen daily, designed to elicit strong reaction, it's not surprising that after viewing Yahoo News someone goes to their Facebook page and comment on the stupidity of the Prez or The Congress.