We hear from the archaeologist whos dedicated her entire career to the terracota army. Good afternoon. Welcome to bbc news. The labour leader, Jeremy Corbyn, has rebuffed calls from some Party Members to promise to keep britain in the european Single Market after brexit. As labours annual Conference Begins in brighton, 30 labour mps are among those who have signed a letter warning vulnerable workers would suffer if the uk left the Single Market. But mr corbyn told the bbc that staying in could hamper the governments ability to protect jobs and to invest in industry. Our Political Correspondent Eleanor Garnier reports. A spring in his step, no surprise. Labours still riding high after a better than expected election result. No longer fighting for his leadership, Jeremy Corbyn is pitching himself as a Prime Minister in waiting. We need at least two terms of a Labour Government to start to address issues of poverty, injustice and inequality in britain, and to build the houses that we need