Grades and Self-Disclosure

In light of the recent publication of John Kerry's grades--not significantly different from Bush's--it occurred to me that this might be a good question to talk about in connection with self-disclosure and the public's right to information about political candidates. Does the public have a right to demand that political candidates reveal their college grades much as they're currently required to reveal their tax returns? It's interesting to speculate on the influence this would have on voting.