There are several other threads which claim that the second half of the inscription "Brother of Jesus" is a hoax or forgery...
My thought is, since the limestone is 2000 years old and very very fragile...It's very serious damage, but not unusual for a limestone box of this age." ... and since the stress fractures were inherent in the piece of limestone, (just made manifest by vibration to the fragile limestone during the flight) isn't it reasonable to assume that if the 2nd half of the inscription was FORGED RECENTLY, the stress from grasping the fragile box and laboriously scratching the words "brother of Jesus" into it, would have caused the box to fracture THEN?
In a way, doesn't the stress factor caused by this week's airplane ride almost AUTHENTICATE that the inscription wsa NOT faked or added recently?
Something tells me this scholar was already not too happy about the 'brother of Jesus' part.