Thursday morning roundup

China's knife attacks show no signs of abating.

Afghanistan's sole native Jew isn't going anywhere.

Primaries signal changing political rules that minimize the importance of party structure.

Just in time for Bike to Work Day, two Post pieces on cyclist-driver relations. I'm so sick of drivers who selectively treat bikes as vehicles: they get frustrated when cyclists walk their bikes across crosswalks, but feel completely free to pass us really closely as if we're not there--only to block our way at the next traffic light. Stop passing me within inches of my bike, and I'll learn to keep my middle finger on the handlebars.