The United Nations has begun distributing millions of copies of Iraq's draft constitution ahead of an Oct. 15 referendum to approve or reject the document, which was reportedly criticized in a leaked U.N. memo.U.N. officials on Monday sought to downplay the leaked internal analysis written on Sept. 15 that looked at the document's weaknesses. Newsweek reported that the memo warned that the constitution is a "model for the territorial division of the State." But the officials said it did not mean the U.N. was backing away from the constitution, which was the result of weeks of intense negotiations. "As far as the U.N. is concerned, the constitution itself will have to be judged by the Iraqis on the 15th of October during the referendum," U.N. spokesman Stephane Dujarric said. "It should come as no surprise that within the U.N. staff who deal with Iraq there would be papers analyzing latest developments in that country, but it's an internal analysis."