A general view of IMF headquarters in Washington. — AFP/FileWASHINGTON: The International Monetary Fund on Tuesday slashed its forecasts for growth in the US, China and most countries, citing the impact of US tariffs now at 100-year highs, and warning that further trade tensions would slow growth further.The IMF released an update to its World Economic Outlook compiled in just 10 days after US President Donald Trump announced universal tariffs on nearly all trading partners and higher rates...