The Homeland security Dept's insprctor general blams"wasteful or inapporate decisian-making at the Transportation Security Admin.for spending on artworks, decotative furnishings and $3000 refrigators, at the $19 million dollarTrasnportation Security Operations Centerin Herndon, Va. The building, which also houses a Fed. Air Marshal Service facility, has55 office, more than 150 work stations, 12 conferance rooms, 7 kitchens and a fitness center for 79 federal workers and 57 contract employes. But what realy drew the inspectors ire was $500,555 in "suspicious purchases including:$252,392 spent on artworks; Gold-Plated TSA