<prompt> Translate the following text to EnglishMifano ya ushuhuda muhimu ambao ulisaidia Bunge katika usimamizi wake ni pamoja na mfululizo wetu wa uwajibikaji wa utendaji na hatari kubwa, ambayo inaonyesha changamoto kuu za usimamizi wa serikali na hatari za programu; mapendekezo ya mageuzi ya usalama wa kijamii; masuala ya kifedha na ya uendeshaji wa Mfuko wa Fedha wa Kimataifa; Programu ya chanjo ya anthrax ya DOD; na mageuzi ya Medicare.  <response>: Examples of important testimonies that helped the Congress in its oversight include our performance accountability and highrisk series, which depict the governments major management challenges and program risks; Social Security reform proposals; financial and operational aspects of the International Monetary Fund; DODs anthrax vaccination program, and Medicare reform. 