Are you disputing that LE does not have the ability to request a wire tap from a judge with a warrant?
Wouldn't you want the police be able to intervene when they hear or observe shouting or fighting through an open door or window?
Are you suggesting that a network-attached microphone is not equivalent to an open window? (https://en.wikipedia.org/wiki/Third-party_doctrine)
Justice Sonia Sotomayor is right to challenge it. I fear that she is one of a narrow generation that is young enough to understand digital technology, and old enough to remember the right to privacy in personal effects.
I meant to convey the idea of imminent and threatening speech.
Different things. In a closed room, there is expectation of privacy. It is not the same for what can be seen from an open window. Also, there is no assurance that LE won't misuse this to crush any dissent or silence somebody they don't like. It is easy to take something said at home out of context or doctor it to sound like something else.