TFA is not only sending young, idealistic, and inexperienced college grads into schools in neighborhoods different from where they're from -- it's also working to destroy the American public education system. As a hopeful future teacher, that is not something I could ever conscionably put my name behind.
Walking into a school is always an adventure. You're never sure exactly what you'll find. Will you find bored kids, angry teachers, neglected hallways, and overwhelmingly cluttered or barren classrooms? Schools, in other words, that make you despair that schools can help kids prepare for their adult lives.
Unless teachers "teach outside the textbook," students won't learn about Grenada or about anything else that might call into question the U.S. authority to impose its will whenever it wishes. The specifics of the Grenada invasion are unique, but when students are encouraged to ask critical questions, they can recognize that intervention in Grenada is part of a pattern.