<prompt> Translate the following text to EnglishKwa hivyo, kuokoa ziada za Usalama wa Jamii haitoshi kuhakikisha usalama wa kustaafu kwa idadi ya watu wanaozeeka bila kuweka mzigo mzito kwa vizazi vijavyo.  <response>: Thus, saving Social Security surpluses is not enough to ensure retirement security for the aging population without placing a heavy burden on future generations. 