News organizations in dozens of countries are panning for nuggets in the latest and largest dump of diplomatic cables by WikiLeaks, which last week suddenly accelerated its posting of the confidential State Department documents. Over a few days, the group made public nearly 134,000 cables - more than six times the total number published by WikiLeaks and many news organizations over the past nine months. On top of the new WikiLeaks posting, news media reports have suggested that a file containing all 251,287 diplomatic cables obtained by WikiLeaks last year might soon be made public. Late Wednesday, WikiLeaks accused the British newspaper The Guardian of revealing a secret password that could lead to the exposure of the entire cable collection. In a statement, the group said it was that expectation that prompted its release of the cables. WikiLeaks has been a magnet for controversy since it began large-scale disclosures of American documents last year, and the new release stirred the same strong emotions. A cyberattack took down the main WikiLeaks Web site for a time on Tuesday, and speculation about possible perpetrators ranged from a number of governments to former WikiLeaks associates now estranged from Mr. Assange. The State Department spokeswoman, Victoria Nuland, while declining to confirm the cables' authenticity, denounced the disclosure of classified information. Most of the cables are unclassified, but some are classified up to the level of secret."