  We discuss the problem of theoretical uncertainties in the combination of
observables related to the CKM matrix elements and propose a statistically
sensible method for combining them. The overall fit is performed on present
data, and constraints on the matrix elements are presented as well as on
fB*sqrt(Bb). We then explore the implications of recent measurements and
developments: jpsi-KS CP asymmetry, epsilon_prime/epsilon and B -> K pi
branching fractions. Finally, we extract from the overall fit the Standard
Model expectations for the rare kaon decays K -> pi nu anti-nu.
