The Saint Paul School Board will meet tomorrow night to decide whether to follow the Minnesota mandate requiring students to recite the Pledge of Allegiance The law passed earlier this year directs all public school students to say the pledge at least once a week. But it allows districts to opt out of the requirement. And it grants individuals the right to choose whether or not to join in as their classmates recite the pledge. So far, the new legislation has faced only limited public debate. Chuck Samuelson, executive director of the Minnesota Civil Liberties Union, says passion for the pledge ebbs and flows with the political climate.