Babbage: Send in the microbots
The hunt is on among the world’s airlines for faster and more efficient ways to keep jet engines in tip-top condition. Could the answer be tiny robots that inspect and fix them from the inside? Also, a new study shows that birds deliberately weave cigarette butts into their nests to help keep parasites away. And is it right to relinquish control of our identities to private companies? Jason Palmer hosts.
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