Two Roosevelt Island Tram cars carrying dozens of people over the East River were left hanging Tuesday when the system lost power due to a mechanical problem, officials say. Rescue crews have begun the process of using cages and baskets to get the passengers off. Both cars stopped moving around 5:15 p.m., stranding about 80 people, officials say. The tramcars were still stalled after 7 p.m. while engineers worked to restore power. One of the tramcars had about 50 people, the other about 30. We are told that there are nine children on board. No injuries were reported. Eyewitness News...