NEW YORK (Reuters) - The euro and equity markets advanced on Wednesday as enthusiasm for the European Union's plans for a 750 billion euro (672 billion pounds) recovery fund offset concerns about unrest in Hong Kong over Beijing's proposed national security laws.U.S. Treasury yields retreated from gains on the European Commission's proposed stimulus plan to bolster economies ravaged by the coronavirus pandemic, which had boosted risk appetite and reduced demand for safe-haven bonds and gold.The..