SAN FRANCISCO (AP) — More than half of Americans are worried about the U.S. government's digital spies prying into their emails, texts, search requests and other online information, but few are trying to thwart the surveillance. The poll questioned 475 adults from Nov. 26 to Jan. 3 — about a year-and-a-half after confidential documents leaked by former National Security Agency contractor Edward Snowden revealed the U.S.