[London] Ken Livingstone, the mayor of London, has kicked off The Big Smoke Debate, inviting Londoners to give their views on smoking in public places after research found that 71% of the city's residents are bothered by other people's smoke in enclosed public places. Independent agency Spirit Advertising created poster and print ads for the London Health Commission. "We tried to remain neutral, as far as we can, to encourage constructive debate," said Ian Maybank, Spirit's business manager. Ads feature cigarette ash retouched to depict London landmarks such as Big Ben, St. Paul's Cathedral and Tower Bridge. The tagline reads, "Smoking in public places. Should it go? Let us know." The ads direct Londoners to a Web site to fill out a short questionnaire on where smoking should occur. Mr. Livingstone will talk about the results and future action at a press conference in mid-January.