[nonameiguess]

I don't believe encryption should have intentional backdoors, but more because of the technical impossibility of doing this without introducing security risk. Your analogy doesn't really work, because what governments are arguing they should be able to do is break encryption and snoop only when given a warrant. They can snoop on in-person conversations when they get a warrant and the general public doesn't oppose that, even though they would not want to carry 24/7 recording devices that snooped on every conversation even in the absence of probable cause to be suspected of a criminal conspiracy.

[garfieldnate]

Couldn't they still use their original strategies for spying if they had a warrant? Just get the phone and install a secret microphone inside, or inside a house or a car. This can be done with cameras, too, though the text on a phone might be hard to read.