Can multiple roles be assigned to a single portlet?

[Conner, Chris]

Can multiple roles be assigned to a single portlet?

I need the functionality because I have 2 sets of users that need to access
a portlet. 

i.e. user1 is assigned role1(to access portlet1 and portlet2)
      user2 is assigned role2(to access portlet1 and portlet3)

      portlet1 is assigned role1 and role2 
      portlet2 is assigned role1
      portlet3 is assgined role2 

Chris