I don't think they are arguing that the government should not be able to collect metadata for suspected terrorists or criminals. This sort of collection could go through the normal channels.
My understanding of the argument is that the mass collection of metadata, from every phone number in America, has not provided any security benefit. For those who feel that sacrificing liberty for security is acceptable, sacrificing liberty to gain no security is probably not.
My understanding of the argument is that the mass collection of metadata, from every phone number in America, has not provided any security benefit. For those who feel that sacrificing liberty for security is acceptable, sacrificing liberty to gain no security is probably not.