I have no dog in this particular fight, but if I were at the helm of any of these companies, I wouldn't willingly hand over my users' data without being lawfull

I have no dog in this particular fight, but if I were at the helm of any of these companies, I wouldn't willingly hand over my users' data without being lawfully required to do so. To do so would be an invasion of my users' privacy. If it's so essential to the government to invade the private conversations of a company's user base, they should stand by their claims by using subpoena powers. I believe they're hoping to avoid legal recourse by "requesting" rather than requiring.