Thai Airways International (THAI) is bracing for even more controversy arising from its tie-up with Tiger Airways to set up a no-frills airline in Thailand as it was advised to hold a stake in the parent firm of the Singapore-based carrier.Some critics question why THAI needs a budget affiliate when it already has Nok Air on domestic routes. Proponents argue this is a shrewd business decision with an airline that plans to challenge AirAsia on foreign routes. Full Story