i was very lucky to have as a professor a hero from world war ii, don carsten. when i was an undergraduate at georgetown. can you mention the role he played, and how important that was, especially after the questions we had. >> he is a polish resistance fighter, who's smuggled into the warsaw ghetto to witness what is jews, and it outside of a belgian extermination camp. he is then smuggled to london, where he talks to british government officials and to the united states, with the help of the polish government in exile. he meets with roosevelt for about one hour, in july 1943, to discuss what he is seeing in poland, not just what's happening to jews, but let's happening in poland. he explains what he has seen in the warsaw ghetto. within the span of a year, he goes from being in the ghetto to being in the oval office, explaining to roosevelt what is happening. at the end of their meeting, he asks roosevelt, so what are we going to do about this? a 27-year-old polish man, in the oval office, probably intimidated, asking the president, the most powerful man in th