This was something mentioned to me in a letter from Royce and Annette Allen, PO Box 5498, Frankton, Hamilton, 3242, New Zealand.
"The letters were definitely burned into rock", says Professor Ludwig Sales from Berlin University. "I´m not ready to say it was a laser beam, but some sort of cutting ray was used - something far beyond the skills of the ancient Hebrews."
The letter also included "A true photo of the lord jesus christ" - standing on the wing of a plane, no less. The phot was taken by a lady "who was a born again Christian".