Google Inc faced angry questions on Thursday from British lawmakers investigating its tax affairs and whether it had misled parliament in testimony last year, adding fuel to a debate on taxation that has risen to the top of the UK political agenda. <br /><br />Google's Northern Europe boss, Matt Brittin, was called back to testify to parliament's Public Accounts Committee (PAC) after a Reuters investigation showed the company employed staff in sales roles in London, even though he had told the committee in November its British staff were not "selling" to UK clients.