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The latest on national protests. Plus, what went wrong in Yemen rescue attempt?
(CNN) - More violence. More tear gas. No answers.
Stun grenades and tear gas canisters arced through the night sky and into crowds of protesters overnight in Ferguson, Missouri, after police said they had been targeted with rocks, Molotov cocktails and gunfire amid continuing demonstrations over the death of Michael Brown.
Two people were shot - not by police, authorities said. Four officers were injured. Police arrested at least 31 people.