[Zope] Actual Permissions

Is there any way for me to debug simple permission problems ie like see the absolute permissions for particular objects/users. I now have a problem after making a set of complicated changes that one of my pages requires a master password. I couldn't seem to figure what was the limiting object. After a lot of head scratching I figured the problem out. Tiny tables don't allow querying for anonymous as the default, but I imagine some way to see what the limiting access was would be really useful. -- Robin Becker