[Undertoad]

http://news.yahoo.com/s/ap/20061014/...t_pe/us_nkorea

WASHINGTON - An air sampling taken after North Korea's claimed nuclear test detected radioactive debris consistent with an atomic explosion, Bush administration and congressional officials said Friday night. They said no final determination had been made about the nature of last weekend's mystery-shrouded blast.

"The betting is that this was an attempt at a nuclear test that failed," a senior administration official said. "We don't think they were trying to fake a nuclear test, but it may have been a nuclear fizzle." The officials who described the results spoke on condition of anonymity because of the sensitive nature of the information.