Some transit advocates aren't quite so convinced. Ferry service in the New York region "has been tried many, many times with some success but more failures," said Jeffrey Zupan, senior fellow for transportation at the Regional Plan Association. Cost is an issue, he said. While all public transportation gets some kind of government subsidy, different modes require different amounts, and ferries will not have anywhere near the kind of ridership numbers the city's subway system does. "How high will the subsidy have to be for each rider that you're carrying?" he asked. Zupan said the city should proceed cautiously, testing the routes to see which ones have the best chances to succeed. Read the full article in the Associated Press.