The decay KL-> mu+ mu- can be used to determine the CKM parameter
Vtd. However, untangling the value of rho depends upon understanding
the long distance contributions to this decay. The decay modes
KL -> l+l- gamma and KL -> l+l- l+l- all can be used to understand
the Kgamma*gamma* vertex. Recent results from KTeV on these modes
will be presented, including a new measurement of KL->e+e-mu+mu-.