Comments on SAML Token Profile

1. The example for "sender-vouches" use case seems really complex. Can this
be substituted with something simpler, say Scenario III from interop draft?
or alternatively line by line documentation for the current example might
help.

2. Profile does not cover SAML "Bearer" tokens. Is this scoped for future?

Thanks

/T$R
(Ramana Turlapati)