Fine but I joined the thread to discuss the OP, not opinions on Truman. As I think I’ve said a couple of times, people will always argue about the consequences of consequentialist morality.
There’s no moral difference between that and what Truman did - neither is concerned about good and evil, only in managing consequences.
This is a very different morality from your own Church, which is clear that torture is categorically wrong in all circumstances:
*CCC 2297 …] Torture which uses physical or moral violence to extract confessions, punish the guilty, frighten opponents, or satisfy hatred is contrary to respect for the person and for human dignity.
“Public authorities must be ever vigilant in this task, eschewing any means of punishment or correction that either undermine or debase the human dignity of prisoners. In this regard, I reiterate that the prohibition against torture “cannot be contravened under any circumstances”” -
vatican.va/holy_father/benedict_xvi/speeches/2007/september/documents/hf_ben-xvi_spe_20070906_pastorale-carceraria_en.html*
Your country has also signed the UDHR, which gives an even clearer prohibition:
Article 5. No one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment. - un.org/en/documents/udhr/