1. Why did President Bush say yesterday that a U.S.- led missile-defense system in Europe is urgently needed?

2. How did Russian President Vladimir Putin react to the proposed U.S. missile-defense system in Europe?

3. In what two European countries would the system be established?

4. Though going forward with the plans to develop and build the sites, why will the U.S. delay activating them, according to Secretary of Defense Robert Gates?

5. What facts are known about the Iranian nuclear threat?

6. How has President Bush responded to Russia's concerns about a U.S. missile-defense system in Europe?

7. How did President Bush respond to President Putin's suggestion to put the missile-defense system in Azerbaijan and southern Russia?

8. President Ronald Reagan's tough stand against the Soviet Union is credited with ending the Cold War. Do you think President Bush's missile-defense system today will have the same effect on Iran? Explain your answer.