WHAT'S NEXT
Saturday: Working sessions of the G-8 summit at Camp David, Md., begin at 8 a.m. CDT and continue until 4:30 p.m.
Sunday: NATO summit begins in Chicago, the first time the organization has held a summit in North America this century. The day's events include a working dinner by the heads of state.
Monday: NATO summit events include talks about Afghanistan and addresses by President Obama and NATO Secretary-General Anders Fogh Rasmussen.
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