The NATO summit in Chicago can overcome the alliance's current woes about Afghanistan and defense cuts by remembering how unique NATO is in history as a club of democracies with shared principles and interests.
Pakistan is stockpiling weapons-grade nuclear material, and accelerating construction of a nuclear plant that can produce plutonium. What's behind the nuclear surge?
In Sharm el-Sheik Sunday, the president chided Arab leaders for lagging behind on democratic progress, in sharp contrast to a speech in which he praised Israel.
He'll celebrate Israel's 60th anniversary, but meet with Israel's Olmert and Palestinian territories' Abbas separately.
His quest for more forces in Afghanistan, headway on continental missile defense may gain ground in Bucharest.
The case involves classified Taiwan weapons data and follows admissions about an errant shipment of nuclear fuses to Taiwan.
His week-long visit will focus on humanitarian improvements.
His trip includes Israel and the Palestinian territories.