<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Privileges and Immunities Clause (U.S. Constitution, Article IV, Section 2, Clause 1, also known as the Comity Clause) prevents a state from treating citizens of other states in a discriminatory manner . Additionally, a right of interstate travel may plausibly be inferred from the clause . </P> <P> The Citizens of each State shall be entitled to all Privileges and Immunities of Citizens in the several States . </P>

What does the privileges and immunities clause require of all states
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