Blast That Leveled Base Seen as Big Setback to Iran Missiles 0 Randall Gross Middle EastDecember 2011Monday, December 5, 2011 at 4:38 am PST • Views: 983 nytimes.com Accident American Officials Big Setback Blast Central Testing Center Huge Explosion Iranian Base Iran Missiles Long-range Missile Program Major Missile-testing Site Satellite Photos Solid-fuel Missiles Surveillance Photos