<prompt> Translate the following text to EnglishKwa muda mrefu, mataifa mengine mengi ambayo sasa yanatoa fedha kwa ajili ya uwekezaji nchini Marekani yatakabiliwa na idadi ya watu wanaozeeka na kupungua kwa akiba ya kitaifa.  <response>: Over the long term, many other nations currently financing investment in the United States will themselves be confronted with aging populations and declining national saving. 