Iran nuclear sites may be beyond reach of "bunker busters"
A U.S. Air Force F-15E Strike Eagle aircraft releases a GBU-28 ''Bunker Buster'' 5,000-pound Laser-Guided Bomb over the Utah Test and Training Range, August 5, 2003.
LONDON (Reuters) - With its nuclear program beset as never before by sanctions, sabotage and assassination, Iran must now make a new addition to its list of concerns: One of the biggest conventional bombs ever built.
Credit: Reuters/Technical Sgt. Michael Ammons/USAF
LONDON
Thu Jan 12, 2012 8:31am EST
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http://www.reuters.com/article/2012/01/12/us-iran-nuclear-strike-idUSTRE80B0WM20120112