Major powers to ban jihadis from returning to UK used once per Daily Mail Online

The Daily Mail report http://www.dailymail.co.uk/news/article-4550994/Major-powers-ban-jihadis-returning-UK-used-once.html that

'Major powers to ban British jihadists from returning to the country after fighting with Islamic State have been used for first time.'

But only once. Too little and far too late.