China’s plan to build a ‘mega-embassy’ in the heart of London has set alarm bells ringing in parliaments around the world.

Until recently, Tim Haugh was among America's top spymasters. The four-star general spent 33 years in Air Force Intelligence and rose to lead America's largest and most advanced intelligence agency.

Discover how China's new 'ghost cities' have left up to 80 million empty homes, and how years of incentives mean some are ...