The National DNA Database is already the largest of its kind in the world. It is used by the police as a tool to solve crimes but has been criticised by some who argue that innocent people should not have their profile kept on it.
Watch the video to hear some different views about whether we should all be added to the database from Anna Fairclough at Liberty and Clare Wilson at New Scientist magazine.
Created to support Big Picture on Genes, Genomes and Health, a free educational resource from the Wellcome Trust.
