* Illustration: Michael Gericke * Warning: The ideas expressed here may be dangerous. For this year's list, we walked right past the usual suspects and went looking for trouble. We wanted radicals, heretics, agitators—big thinkers with controversial, game-changing propositions. We found a prison reformer who wants to empty jails, an economist who thinks foreign aid hurts more than it helps, and a military theorist who believes the US should launch preemptive cyberattacks, right now. Then there's secretary of defense robert gates, who wants to win wars, not just prep for them. Risky? Sure. But this is no time to play it safe.

1. John Arquilla

Go on the Cyberoffensive

2. Thorkil Sonne

Recruit Autistics

3. Gregg Easterbrook

Embrace Human Cloning

4. Ralph Keeney

Cheat Death

5. Dambisa Moyo

Cut Off Aid to Africa

__ 6. Nils Christie__

Empty the Prisons

__ 7. Stewart Brand__

Save the Slums

__ 8. Stefan Szymanski and Stephen Ross__

Bust Up Big League Sports

9. Ludwig Minelli

Legalize Assisted Suicide

10. Jamie Heywood

Forget Medical Privacy

11. William Gurstelle

Take Smart Risks

12. Robert Gates

Overhaul the Pentagon

Illustration: Tucker & Bennett