The first questions is misleading, the second question is flawed. Misleading because there's more at work here than the Constitution. Flawed because you've got to be a lucky Luddite idiot working on the bench to ignore the Fourth. I don't know how constructionist v. living interpretation comes into play in this issue.
The White House and telecoms have been fighting the lawsuit initiated by
Electronic Frontier Foundation,
Hepting v. AT&T, for (from
Nebraska's article) connecting a device that "diverted and copied onto a government supercomputer
every call, e-mail, and Internet site access on AT&T lines". First they tried the states secret line of bull but Judge Walker, a Bush 41 appointee, didn't want to hear it and proceeded with the case. It's being appealed in the 9th Circuit Court. The lawsuit got started when an AT&T whistleblower came forward with the story of telecom complicity with NSA spying.
In order for the latest FISA amendment to stick, which grants retroactive immunity to telecoms that conspired with federal agencies from civil lawsuits and prosecution, privacy needs to be redefined in U.S. Code. Otherwise the telecoms risk other judges interpreting the amendment as unconstitutional. Even if privacy isn't spelled out in the Constitution, however, we should be "secure in their persons, houses, papers, and effects, against unreasonable searches and seizures".
Now the White House is working with Senate Intelligence Committee chariman Rockefeller, who has recently been
flushed with money from these "patriotic corporate citizens", as
The Washington Post called them. This is a far cry from the Rockefeller who wanted to investigate the NSA's spying
three months before the lawsuit was filed and complained bitterly about rank partisanship derailing oversight within the committee.