Is the U.S. doing enough for Haiti?

With conditions in Haiti growing worse by the hour, the Obama administration has pledged $100 million and is sending 5,000 troops to help in relief efforts there. Should the U.S. be doing more? Does it have an obligation different from other nations? Should the U.S. take on a nation-building project in Haiti?

• Tod Lindberg, Hoover Institution
• Mark Schneider and Bernice Robertson, International Crisis Group
• Walter Russell Mead, Council on Foreign Relations
• Anne C. Richard, International Rescue Committee
• Greg Beckett, University of Chicago

(The New York Times)