Tombstones are when two newspaper headlines, next to each, other, read like one headline, and are funny.
The "Crawl" are the words along the bottom of Fox.
This isn't really Tombstone Crawl, it's the opposite. When a complete crawl item, out of context, is just too funny.
President Bush Was Not Troubled Laying Weath at Grave On What Would Have Been King's 75th Birthday
Which reminds me a lot of this tidbit, which I think goes a long way to pointing to the really insidious "racism" of the President of the United States (warning, Flash).