Senators Richard Burr and Dianne Feinstein are neither the oppressive arm of Government nor are they idiots.
They are, however, profoundly ignorant of how things work in the real (non-Beltway) world. They are of the same ilk that cannot understand that email kept on a small private server (small target) with a staff that gives a damn is quite likely a lot more secure than on a "secured government server."
They must be thinking, "the company will provide a back door and keep it secret." What a great concept. Unfortunately that idea belongs to a world where it took a whole government and a bevy of codebreakers to crack a simple substitution code - the Enigma codes. Today, a single hacker can put together thousands of cpu core resources to attack any system. If there exists a back door, if there is any way into an encrypted system, some 14 year old in Romania or Great Britian (or China!) will find it. Consider the fact that the FBI hired such to go after in iPad, and the thing was compromised in short order.
And lest we think that this is a good thing, so that governments can go after terrorists, let me pose a question on a personal level: "How big is your bank account? Would you mind if you woke up some morning and found it empty?"
There are thousands of terror targets and probably tens of thousands of would-be terrorists. There are quite literally billions of targets in the private sector. It won't make the even news for very long if Mr. Smith gets cleaned out, but to Mr. Smith it may seem pretty terrible.
And there is a worse side: Let's say that the government requires back doors everywhere. Does that mean that terrorists are going to give up and throw up their hands figuratively? Hell, no. Any competent programmer can come up with an encryption scheme not known to the government, perhaps with vulnerabiilities which are also unknown to the government. The good guys (Us!) have opened our bank accounts to the script kiddies, and the bad guys will go right on using strong encryption. The government will be right back where they are now, having to hire a hacker to break that encryption.
We will have given up the keys to our doors without putting a small dent in terrorism.
Not a good choice, imo.