The tomb of Jesus?

There's been some stuff in the news recently about some people who reckon they've found the tomb and coffins of Jesus, Mary Magdalene and a child they're rumored to have had together. A few years back there was someone who reckoned they'd found the coffin of Jesus' brother James, and that turned out to be a forgery. It seems almost like a resurgence of the medieval obsession with holy artifacts - pieces of the One True Cross, bones of saints, et cetera.