High costs, reliability, legality, and public perception are all issues surrounding missile defense systems. Research these issues here.

• Missile Defense Pro-Con
• Missile Defense in Eastern Europe
• Missile Defense Overview

Figure 13
Past and Projected Resources for Missile Defense Investment

(Billions of 2009 dollars)

Source: Congressional Budget Office, The Long-Term Implications of the Fiscal Year 2009 Future Years Defense Program.

Note: FYDP = Future Years Defense Program.