An Israeli described by US authorities as one of the world's biggest drug traffickers pleaded guilty Tuesday to federal charges of conspiring to import thousands of Ecstasy pills into the United States. The plea by Zeev Rosenstein, also known as "The Fat Man" and purportedly one of Israel's top organized crime figures, comes just a week before trial was scheduled to begin. Rosenstein, 52, was sentenced by US District Judge William Dimitrouleas to 12 years in prison to be served in Israel as part of the deal. Rosenstein was extradited from Israel in March 2006 to face a US grand jury indictment charging him with conspiring to distribute more than 850,000 pills of the synthetic drug MDMA, more commonly known as Ecstasy. The charges carried a maximum possible sentence of 40 years in prison and $2 million (â‚¬1.54 million) in fines.