Dr Chris Naunton believes, despite having felt quite optimistic about the discovery of the "big void" in Khufu's pyramid several years ago, the efforts at the site are being severely hampered by government restrictions and bureaucracy, which puts off quite a few Ancient Egypt enthusiasts working there... Five years ago, the ScanPyramids project was launched to provide several non-invasive and non-destructive techniques that would improve historians' understanding of how the pyramid was constructed over 4,500 years ago. Two years later, they solemnly announced the discovery of a "Big Void" -- an intriguing 30-metre cavity located above the Grand Gallery. However,...