Given that the St. Louis area police have been making use of tear gas again, reportedly without even the dispersal warning the judge agreed they are required to provide, I'm going to point to the 7 Things about tear gas.
1. One teen tried self-directed learning for a year. (I realize that many home schoolers and unschoolers do this all the time. I still think the things he found were interesting.)
2. One scientist gave an amazing answer to the question of how one can avoid having a disabled child. (Short version, you cannot. But the long version is well worth a read.)
3. And this piece on the Ashley Madison hack looks into why those of us who make use of the internet, even for non-salacious reasons, should be concerned.