The FT's Katie Martin and David Bloom from HSBC discuss last week's 'flash crash' in sterling and explain how 'FX vigilantes' are making their views heard on the UK's journey to the exit from the EU.<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<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
