If at all = ?

Context:
Researchers' access to Google was threatened further when, on 12 January, Google's senior vice-president and chief legal officer David Drummond said that the company may pull out of China altogether. He explained that after a spate of cyber attacks on Google Mail, believed to come from within China, the company was no longer willing to censor results from Google.cn. He added that the company would discuss with the Chinese government "the basis on which we could operate an unfiltered search engine within the law, if at all", and that "we recognize that this may well mean having to shut down Google.cn.