US prosecutors are going after art buyers who have made deals with galleries to avoid sales taxes. So far, “34 Manhattan families had coughed up $6 million in back taxes on art purchases since June, when former Tyco International CEO L. Dennis Kozlowski was indicted on charges he evaded sales taxes on $13 million in art in a widely publicized case. Art dealers say they believe the government is looking for quick ways to collect revenue in a weak economy.”