Mr. Assange is giving the materials, a few at a time, to the NYT, and others, so that they may determine, in their journalistic opinion, based not just in support of a single government, but with the principles they hold defending democracy.
It must always be remembered, the data is being filtered, and redacted, and withheld, if immediate danger to individuals is expected, among other reasons.
I for one am glad that The Guardian, El Pais and Le Monde have access too.
He is not releasing all the data at once, or just on the opinions of wikileak volunteers or staff.