[Zope] finding out if a specific user / group has a specific permission

[tav]

scenario: i am logged in as 'tav' and would like to know if 'Anonymous User'
has permission to view the current object...

i can find out if the current user has a specific permission:

    <dtml-if "AUTHENTICATED_USER.has_permission('xt_object view',this())">

but, this does, in no way tell me if an Anonymous User can...

i would appreciate some guidance. thanks

--
best regards, tav
tav@espnow.com