内容摘要：Planning proposals suggested it could accommodate warehouses, container handling infrastructure and vehicles.

Planning proposals suggested it could accommodate warehouses, container handling infrastructure and vehicles.

In a speech that was equal parts celebration and self-congratulation, regularly punctuated by applause from the crowd, the president recalled his longtime support of tariffs, as well as his early criticism of free trade agreements like Nafta and the World Trade Organization.The president acknowledged that he will face pushback in the coming days from "globalists" and "special interests", but he urged Americans to trust his instincts.

"Never forget, every prediction our opponents made about trade for the last 30 years has been proven totally wrong," he said.Now, in a second term in which he is surrounded by like-minded advisers and is the dominant force in a Republican Party that controls both chambers of Congress, Trump is in a position to turn his vision of a new America-focused trade policy into reality. These policies, he said, had made the United States into a wealthy nation more than a century ago and would again."For years, hard working American citizens were forced to sit on the sidelines as other nations got rich and powerful, much of it at our expense," he said. "With today's action, we are finally going to be able to make America great again - greater than ever before."

It is still an enormous risk for this president to take.Economists of all stripes warn that these massive tariffs – 53% on China, 20% on the European Union and South Korea, with a 10% baseline on all nations – will be passed along to American consumers, raising prices and threatening a global recession.

Ken Rogoff, the former chief economist at the International Monetary Fund, predicted that the chances of the US, the world's largest economy, falling into recession had risen to 50% on the back of this announcement.

"He just dropped a nuclear bomb on the global trading system," Mr Rogoff told the BBC World Service, adding that the consequences for this level of taxes on imports into the US "is just mind-boggling".Meanwhile, the yield on a 10 year bond surged on Wednesday to its highest since October 2008, to reach 4.784%.

The government generally spends more than it raises in tax. To fill this gap it borrows money, but that has to be paid back - with interest.One of the ways it can borrow money is by selling financial products called bonds.

A bond is a promise to pay money in the future. Most require the borrower to make regular interest payments.UK government bonds - known as "gilts" - are normally considered very safe, with little risk the money will not be repaid.