The United States has “no defence against hypersonic weapons or cruise missiles”, a senior Pentagon official told Congress on Monday, as US President Donald Trump’s US$185 billion Golden Dome missile shield faces continued scepticism. “The Golden Dome will strengthen deterrence by denying adversaries the ability to achieve their objectives through coercion or aggression,” Marc Berkowitz, the assistant secretary of defence for missile defence and deterrence policy, told a Senate hearing on...