Detailed text transcripts for TV channel - CNN - 20171226:08:45:00
>> yes, tom, the smallest possible one. very small piece. >> we only need about ten milligrams. >> that's equivalent to a few grains of salt. but this relic has been venerated here for almost 1,000 years. every speck counts. >> it's very, very hard, this wood. >> could that mean anything to do with its age? >> i mean, it actually looks old. it looks aged. so far, so good. >> tom is satisfied with his sample. now they can head back to the lab to test for the first time this piece of the true cross.