The World's Jason Margolis reports that climate change will top the agenda for world leaders at this week's G-8 summit in Germany. President Bush will be offering his own proposal for curbing greenhouse gas emissions.

Today, a military judge in Guantanamo Bay, Cuba, dismissed terrorism-related charges against a Canadian detainee charged with killing an American soldier in Afghanistan. The suspect was 15 at the time. The dismissal was on procedural grounds. Anchor Lisa Mullins speaks with Muneer Ahmad, who represented the Guantanamo suspect until last week.

Anchor Lisa Mullins speaks with non-proliferation expert Joseph Cirincione about the recent tense exchanges between Russia and the United States over missile defense in Europe. Cirincione says it's not just rhetoric. He sees the potential for a new arms race.

V. Putin

Russian president Vladimir Putin said today his country might point ITS missiles at Europe if the United States continues with plans to site a missile defense system in the Czech Republic and Poland. The World's Gerry Hadden looks at the escalating tensions between Moscow and Washington in the run up to the Group of Eight summit in Germany this week.