In the Sahara, the African spurred tortoise lives for about a century. Thanks to modern technology, one named Franky has a shot at immortality.“He gets about 10,000 viewers a month,” said Donnie Cook, the owner of Lou’s Pet Shop in Grosse Pointe Woods, Mich., where Franky, an easygoing 17-year-old, spends his days transmitting over the Internet a nonstop tortoise-eye view of the world. “We get people from at least 30 states, plus Italy, France.” A family in California has even sent the store $50 to keep Franky in lettuce.Why should the National Security Agency have all the fun?Franky’s fame illustrates...