The email service reportedly used by surveillance whistleblower Edward Snowden abruptly shut down on Thursday after its owner cryptically announced his refusal to become "complicit in crimes against the American people."Lavabit, an email service that boasted of its security features and claimed 350,000 customers, is no more, apparently after rejecting a court order for cooperation with the US government to participate in surveillance on its customers. It is the first such company known to have shuttered rather than comply with government surveillance."I have been forced to make a difficult decision: to become complicit in crimes against the American people or...