Whoa whoa whoa!! Before y'all go off half-cocked on how Hawass is 'destroying the credibility of Egyptology' - have you forgotten the TRULY silly stuff that the New Agers have come up with about the Pyramids and the Sphinx? My personal observation as to why Hawass is playing the 'showman' here is to make a LOUD refutation that the Pyramid was built by little green men from Mars or that there some kind of harmonic convergence meaning to the structures there. He's been fighting off the ridiculous theories of that one guy who claims theres a secret chamber under the Sphinx for years now...so I can well believe that this effort to use modern technology to explore every available crevice in the Pyramid will have important information for archaeologist, architecture and the culture of ancient Egypt. Please...cut the man some slack. I see him as fighting fire with fire and with REAL science, not the silly New Age crap that is overriding a lot of what is being said about ancient Egypt. Its truly ridiculous the stuff thats being touted out there.
Graham Hancock would probably be this guy...
Actually, as much as I think he's a blowhard and buffoon, Hawass is probably the best man for the job at this time. He is all about promoting tourism in Egypt, and has had to contend with little inconveniences like Islamofascists gunning down dozens of German tourists at the Temple of Hatshepsut back in the 1990s.
As far as chambers under the Sphinx, the first to say so was Thutmose IV, Pharaoh of Egypt -- he even left the Dream Stele between the paws to tell everyone about it. Maybe that's who you mean? Hawass' looking behind another stupid identical door in those tiny little shafts is just hucksterism, and does nothing to refute or confirm anything.
Hawass was involved in one of those oh-so-eerie specials on Giza, some years ago. There was a surviving workman from the 1930s effort that freed the Sphinx of sand, and he pointed out the exact location of the block used to patch a hole they'd found in the lower rear part of the Sphinx. The block was pried out, and someone (maybe it was Mark Lehner) led a camera crew into it for the viewers. It appeared to have been dug by medieval or ancient robbers looking for chambers, treasure, or whatnot. The same little tunnel also went the other way (not shown), up towards the head.
For that matter, there's a void under the Sphinx that appears to be a small cavern or tunnel, and the stone box (it is alongside the right paw, which is on the left as one faces the Sphinx) is known to be hollow and covering something, perhaps the doorway mentioned on the Dream Stele.
Wondering what's inside there isn't "silly New Age crap". Telling the world that a waterlogged New Kingdom-era hole in the ground near the Sphinx is the grave of Osiris sound very much like "silly New Age crap", but that's one of Hawass'.