Speaking outside his home in London, Health Secretary Matt Hancock says he is grateful to the team which built the Test & Trace system - despite the Public Accounts Committee warning that its impact remains unclear. Baroness Harding, head of Test & Trace, said the majority of funding went on testing. Report by Odonovanc. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn