 These included Macquarie Bank's controlling stake in Sydney Airport (Australia's largest airport).There was concern that Macquarie Bank, being a major shareholder in both Qantas and Sydney Airport, would have incentive to place restrictions on commercial competitors using Sydney Airport, or favour Qantas in business dealings.Airline unions raised concerns about the proposed takeover, amidst concerns that there would be heavy redundancies, or high numbers of jobs sent offshore.