Yes it was damaged last week, and all the weeks and years since somebody added more text than it was designed to hold. The extra text is the damage.
Has anyone CAT scanned, X-rayed, or anything other than photographed it yet?
Not if the "extra text" was added circa 62 AD.
At that time the limestone was fresh enough to build a box out of and would have supported any amount of writing.
If you look at a photo of the box post-damage, i.e. after the flight to Canada this week, you'll see the vibrations from the flight punched a hole right through the wall of the box. It looks as brittle as an egg shell.
Photos of the inscription LAST week show no sign of damage at all.
If one wants to claim the "brother of Jesus" part was a HOAX, one must postulate WHEN the supposed "hoax" was done... last month? Last YEAR? 20 years ago? 200 years ago? And one must factor in the brittle, eggshell-like condition of the ancient limestone.
Then one must ask to what end and what purpose it would have been done? Money? To corroborate certain passages in the Bible?
How long did the box sit in dusty obscurity before it's recent discovery? Why would a hoaxer forge an inscription but make no effort to live to see the outcome of his handywork? And make no effort to profit from it?