'We're already spending a lot of money'
Media playback is unsupported on your device

Dame Sally Davies: DNA testing already costs 'a lot of money'

Prof Dame Sally Davies, who wants DNA testing to become standard across cancer care, says testing is currently operating like a "cottage industry".

She told BBC One's Breakfast that patients should be routinely offered DNA tests to help select the best treatments for them.

  • 04 Jul 2017