► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Daniel Garrahan provides Wednesday’s top stories from around the world, including North Korea<br />carrying out its first successful hydrogen bomb test, a lock-up on Chinese share sales which is to be extended and Twitter working on longer tweets.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes