NUCLEAR disarmament is the topic. 25,000 attended.
President Obama continued his 8-day America Revival Tour with a historic day in Prague, building on President Kennedy's Nuclear Reduction Doctrine, taking the first step towards the elimination of ALL nuclear arms.
► Czechs line the hills to watch Air Force One land.
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► Slideshow: 15 Pix in All.
► Michelle visits Prague's Jewish quarter
► Now comes perhaps the most interesting leg of the tour. Under heavy guard, the President has landed in Turkey, keeping his pledge to visit a Muslim country during his first 100 days in office. On Tuesday, he holds a town hall meeting with hundreds of Muslim students in Istanbul.