Maria "Bambi" Rodriguez, right, says goodbye to Maria Suarez and her daughter Katherine, 3, at the end of the day in Rodriguez' classroom in Oakland, Calif. Wednesday, Dec. 15, 2010. Rodriguez, a special needs preschool teacher from the Philippines, recently learned she had to return to her home country because she was denied permanent residency and her visa expires this month. (Kristopher Skinner/Staff)