Law & Society

Hundreds of people protested Wednesday in Wisconsin's capital and more than two dozen were arrested for blocking a road a day after a prosecutor ruled that a Madison police officer's fatal shooting of an unarmed biracial teenager was justified.

The Czech Republic blocked an attempted purchase by Iran this year of a large shipment of sensitive technology useable for nuclear enrichment after false documentation raised suspicions, U.N. experts and Western sources said.

The commuter rail route where an Amtrak train left the track on Tuesday was not governed by an advanced safety technology meant to prevent high-speed derailments, investigators said on Wednesday.