Could passenger-disrupted flights become the new normal?

SEATTLE -- Some passengers are asking the question whether scares in the air are the new normal following a string of passenger-disrupted flights.

During the past week, three separate passengers have made threats that disrupted flights. On Monday, a passenger was hauled off a United Airlines Flight from Hong Kong To Newark, N.J., after he claimed he poisoned some of the travelers. On Saturday, a bomb squad was rushed to a Frontier Airlines Plane after a man claimed he had a bomb in his backpack.

Finally, a passenger on a flight from Cairo to New York found a threatening note inside the plane's bathroom saying, "I'll set this plane on fire." The flight was diverted to Scotland.

Watch the video above to learn more about how prevalent disrupted flights are becoming.