Bottom line, they can ask a technology manufacture to do anything (literally last time I looked the bill had the phrase "do a thing") and they have to do it. But the specific intent is to have the manufacture deliver targeted malware to people they want to monitor. A warrant is not required, but a crime with a jail term of 3 or more years must be involved ("involved" because you do not have to be a suspect, just useful to the investigation to receive the malware).