Delta Air Lines <DAL.N> and Canada's WestJet said late on Friday they had scrapped a proposed U.S.-Canada joint venture after the U.S. government demanded changes the airlines insisted were "unreasonable and unacceptable". Last month, the U.S. Transportation Department as part of its tentative antitrust immunity approval said it would require the carriers to remove Swoop, an ultra low-cost carrier affiliate of WestJet, from the alliance, and divest 16 takeoff and landing… (www.yahoo.com) 更多...