Photo by Jaimie WarrenArmando DiazArmando Diaz, a Latino stone mason, found damning evidence that J.E. Dunn Construction Co. made a sham of minority-hiring goals when it subcontracted work on the H&R Block headquarters. But an appeals court says Diaz has no recourse.In an opinion filed yesterday, the Missouri Court of Appeals upheld a lower court ruling against Diaz Construction Co. and the Kansas City Hispanic Association Contractors Enterprise. Diaz and KCHACE had sued the city, J.E. Dunn
