Cheap labor. The Wall Street way. If there's somebody who will do the job for 1 cent cheaper per hour, they have the job.

First it was the service industry, now they're going this direction with public safety.

Before you know it, they'll be hiring airline mechanics from third world countries who are willing to take a salary of $10k/year. At least they say they're airline mechanics. It's on their resumes. For the salaries they're willing to accept, who cares?!? Enjoy your flight.