crackdown

China is trying to maintain stability in the western region of the country, after deadly riots killed 165 people.

Robbie Barnett, a professor of modern Tibetan studies at Columbia University, says the government handled this unrest differently than it did with last year's crackdown in Tibet.

He says Tibet was locked down, while journalists were taken to Urumqi to see the damage.

President Obama has chosen his words carefully in reacting to the massive street demonstrations and violence that have taken place in Iran since last week's disputed presidential election.

He's walking a fine line — condemning the crackdown but not declaring the election illegitimate. Republicans in Congress say a more forceful reaction is warranted.