Don't see the film for the first reason. It's about a guy who ruins his life. Technically, though, the movie is well-done, and Johnny Depp does a fine job acting. See the film for the second reason. While the main character is not glorified, we are certainly meant to sympathize with him.
Traffic is a film meant to explicitly critique the drug war.
Blow is not. The April 6 Houston Chronicle published a Knight Ridder article by Thomas Hargrove about homeschooling. As horrific shooting sprees increase on public school grounds, the number of children being taught at home is growing significantly. Parents know that this is just a symptom of some very serious things going on in society. Most of these people had been entertaining notions of home-schooling all along, but these shooting incidents prompted them to commit to it.