Yes, Congress could legislate, but wouldn't it be better if our Fourth Amendment rights weren't at the mercy of legislators, as they have been since the 1970's (Smith and Miller)? To see how to overturn those cases and "legalize privacy," check out the last article link in the descriptive material below this video. ("Of Third Party Bathwater...")
When did we get away from the idea that the Constitution limits the government, and that anything not permitted of it under the Constitution is forbidden for the government to do? Of course, I think that is what you are saying by holding up the Fourth Amendment and telling government-Stop right there until you get a warrant! Thanks for the introduction of the arguments in legal history of the USA.
BIOS has largely been superseded by Bootloader and UEFI technologies, yet nearly every device still includes a BIOS chip for "backwards compatibility." In a world where cost-saving measures extend to even shortening the length of laptop chargers, why does the BIOS chip persist? Typically, the BIOS includes around 10 MB of extra memory for "potential future updates." Consider that our most sophisticated Trojan to date, STUXNET, was under 1.5 MB. How many Stuxnets could fit into that 10 MB? Since the BIOS operates below the L operating system, it has higher privilege than any software. It sits directly on the motherboard so it has direct access to and control over hardware components, such as the CPU or RAM. SIGINT goes beyond CPU chips. look at BIOS chips, too, is all I am saying! You would be surprised!