I have just listened an amazing story. I need to share it:
In 1954, #RaulFollereau asked Russia and US presidents to donate the cost of one B52 bomber for the treatment of the leprosy patients. He had estimated that money would have been enough to treat all world leprosy patients. Follereau didn't receive any response to his letter. Some years later, he saw several dismissed B52 bombers. He said himself "Here are my 2 airplanes too... Now it's too late, the 2 presidents of Russia and US are retired and they have missed a great opportunity and a great and pleasant memory for their retirement".