ENCORE Computers and DNA have a few things in common. Both use digital codes and are prone to viruses. And, it seems, both can be hacked. From restoring the flavor of tomatoes to hacking into the president's DNA, discover the promise and peril of gene tinkering.
Plus, computer hacking. Just how easy is it to break into your neighbor’s email account? What about the CIA’s?
Also, one man’s concern that radio telescopes might pick up an alien computer virus.