licence under 2 laws?

["Pam Davies" <lib6pmd@library.novell.leeds.ac.uk>]

Colleagues,

We have been asked to sign a licence which says that it is governed 
by both US and UK copyright laws, and that "Customer acknowledges 
that it and its Users have no right to make copies [....] except to 
the extent permitted by such copyright laws."

Where the two laws differ, how does that leave us and our readers:  
if something would be permitted under one law and not the other, does 
our User have the right to do it or not?   Any thoughts, especially 
from UK colleagues?

Pam

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Pam Davies,  IPR and Projects Officer, 
Edward Boyle Library, University of Leeds, Leeds LS2 9JT, UK
p.m.davies@leeds.ac.uk    tel: 0113 233 5543   fax: 0113 233 5539