By Doug Gray, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL – Key infrastructure concessions continue to hang in the balance and face uncertain futures as the private sector tiptoes warily around large public projects covering the country's roads, railways, airports and ports. As a precaution, the government has removed certain restrictions in a bid to stimulate greater competition in the forthcoming auction for Rio’s international airport.
Following a lack of interest in the concession to manage the Minas . . .