Because the “free world” hasn’t yet figured out that spying on its citizens is exactly the opposite of “freedom”.
The United States makes an improper division between surveillance conducted on residents of the United States and the surveillance that is conducted with almost no restraint upon the rest of the world. This double standard has proved poisonous to the rights of Americans and non-Americans alike. In theory, Americans enjoy better protections. In practice there are no magical sets of servers and Internet connections that carry only American conversations. To violate the privacy of everyone else in the world, the U.S. inevitably scoops up its own citizens’ data.