Niagara Falls firefighters rappelled into the Niagara Gorge in frigid temperatures before dawn today to rescue a man and a woman who were stuck on the icy Niagara River, authorities said. The woman allegedly was trying to sneak across the border from Canada by walking across the frozen river under the Rainbow Bridge. The man was apparently trying to help her when they realized they couldn't make it back up the steep, icy wall of the gorge... "I don't know what was crazier," said Falls Fire Chief William Mackay, "the operation we had or the people who thought they could...