By Jonathan Stempel NEW YORK (Reuters) – A former heavyweight boxer from Montenegro was charged by the U.S. Department of Justice on Monday with trafficking in 22 tons of cocaine worth over $1 billion, most of which was part of one of the largest cocaine seizures in American history. Goran Gogic, 43, was arrested on Sunday night while trying to board a flight to Zurich from Miami International Airport, after being indicted by a grand jury in New York. Prosecutors charged Gogic with three counts of violating the federal Maritime Drug Law Enforcement Act, and one count of conspiracy. Each count …