It must be close to Easter

Every Easter some new bit of archiological discovery is released This year it's that "the tomb in which Jesus Christ is believed to be buried is older than everybody thought, scientists have revealed. Tests run on the the remains of a limestone cave in the Church of the Holy Sepulchre in Jerusalem have dated the tomb to around AD 345, National Geographic reported on Tuesday.". To me it says they have no idea if it's real or not. It would be like finding a random spot in virginia a hundred years from now and saying it was where George Washington was buried.