UK airport operator BAA told to sell 3 of its 7 airports , including two in London . Comment: BAA must sell airports in sequence , beginning with Gatwick then Stansted .
UK airport operator BAA told to sell 3 of its 7 airports , including two in London . Britain 's competition watchdog said sale of airports will encourage competition . BAA must sell airports in sequence , beginning with Gatwick then Stansted .