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Five Sci-Fi Scenarios That Will Come True

In the next 25 years, these technological advances, made famous in movies and on TV, will become reality. How accurate are our prognostications? Check back with us in 2033.

Dan Tynan

Biometric Security (predicted mainstream date: 2010) 2 of 6

As seen in the film "Minority Report"

In a few years, we'll be using fingerprint, voice, iris, or retinal scans to log on to Web sites and make purchases. Sounds a lot better than storing passwords under your keyboard, right? But remember: Your body is your password--so don't lose it.

(Image copyright 20th Century Fox)

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