A crop of legal cases across the US raise concerns over the use of electric stun guns in routine police stops.
Legal challenges ensue in federal court, and plans are afoot for a 2010 ballot measure to undo Proposition 8.
Readers write about Obama's nominee for the Supreme Court.
New discoveries about reefs, pinniped evolution, and climate change.
Column: This dangerous practice needs to be made illegal, as well as 'uncool.'