While Zelensky is in the US asking for more funds to support the war in Ukraine I read on the media that there was some debate over whether it is worth or not to keep funding them. I got the feeling that the debate is missing a point. Past experience like the reconstruction in Iraq and Afghanistan plus many projects partly supported by the World bank has shown that often funds granted by the US administration are ineffective due to the many kickbacks. So I would like to know if there is anyone in charge of overseeing how all those funds are used.

I understand that a lot of support is given directly are materiel, but apart from that there is still a lot of cash involved.