On this continuum, the level of professional skepticism moves from something less than complete trust, to a neutral mind-set, to presumptive doubt, and all the way to complete doubt. The appropriate level of skepticism to apply is initially determined only after a careful and rigorous risk assessment.
1 The longest flying aircraft flying from Kansas City, MO to Cancun, Mexico during the 2009 year was a AirbusNdustrie's A319 flown by Frontier.  Back in 2009 there was just one airline company operating flights between Kansas City and Cancun.
Cancun has a tropical climate with lovely warm temperatures all year round with wet as well as dry seasons. The best way to get to Cancun is to fly. Flights with airlines such as Aeromexico, American Airlines and United Airlines are regular from Mexico City.