Should we require Secret Service agents to be eunuchs?

Ancient kings, queens, emperors and empresses knew that their survival depended on the honesty, trustworthiness and loyalty of their palace guards, and that terminal testosterone toxicity was a direct threat to their longevity. Hence, those who protected the ruler/s and their harem were all eunuchs. Stripped of any temptation of the flesh, their single focus was on serving their ruler and the royal court. Did the ancient rulers know something we’ve lost to political correctness today? What do you think of recruiting eunuchs to guard the first family?