Is there a newspaper in the photo for confirmation?
Possible report of B2 taking off from whiteman AFB aprox. 12-16 hours before the report of the explosion was out?
Another thing we have to look at is the size and crater of the explosion. Everyone who knows bombs looks at the pics and thinks either daisy cutter or MOAB. Whats the weight of a MOAB 21-27,000lb? The B2's max payload is 40,000 could they have modified the Spirit to drop these yet? Because last time cutters were dropped was tora bora and they were dropped from c-130's.
Koizumi and his company saw Kim Jong-il. So credible eyewitness account is available, too.