As the movement to overhaul teacher evaluation marches onward, an emerging question is splitting the swath of advocates who support the new tools used to gauge teacher performance: Who should get access to the resulting information? Supporters of typing teacher evaluations to student performance differ over whether individuals' results should be made public. As evidenced in recently published opinion pieces, the contours of the debate are rapidly being drawn. Some proponents of using student-achievement data as a component of teacher evaluations, including the philanthropist Bill Gates and Teach For America founder Wendy Kopp, nevertheless believe that such information should not be made widely public. Other figures, like New York City Mayor Michael R. Bloomberg, champion the broad dissemination of such data. The debate is poised to grow noisier, as news organizations continue to pursue teacher-performance information. An "Education Week" review shows that access to teachers' evaluation results is permissible under open-records laws in at least 18 states plus the District of Columbia, though they are often unclear as to specifics. An additional 19 states do not allow such access, while the other states require teacher or third-party approval.