Trump 'Golden Dome' plan tricky and expensive: experts

Trump announced plans for the space-based system last month, saying it would eventually cost around $175 billion and would be operational by the end of his term in 2029. The planned defence shield's name is a nod to Israel's Iron Dome that has intercepted thousands of short-range rockets since 2011. But the US defence system would intercept much bigger intercontinental threats. The plan comes after a 2022 Department of defence study pointed to advances by China and Russia. Beijing is closing...