China poses a threat to America’s senior citizens through drug supply chains, financial scams and data privacy, a congressional hearing highlighted on Wednesday, with lawmakers and witnesses framing it as a national security issue. “Fifty years ago, we never would have given the Soviets the kind of leeway we give China: the access they have to our economy and our information, the dependence they enjoy from our supply chains,” said Rick Scott, a Republican senator from Florida, adding that the US...