Alexis Madrigal

The ultimate smart-home vision is a home that basically runs itself, from coffee makers to washing machines. But we're not there yet: The real world is a hard place for little computers to operate in.

A couple of hours can go a long way toward making your data secure from criminals. It's a hassle, but you'll be forever safe from malicious forces.

Some of the nation's restaurants are using technology to make diners commit before their night out. It's convenient for the restaurant and customer — and it may pry people away from old habits.

Fresh Air tech contributor Alexis Madrigal explains how a tiny computer attaches to a pill you ingest to record how your body responds. It sounds crazy, he says, but it was approved by the FDA.