back in 2004, phil klein released a trilogy of rumsfeld songs making music from the inadvertent poetryf rumsfeld. we took the liberty of slicing klein's music to the original sound bites from mr. rumsfeld. ♪ ♪ as we know there are known knowns ♪ ♪ >> there are things we know we know. there are no unknowns. there are things we now know we don't know. but there are also unknowns unknowns. the ones we don't know we don't know. and each year, we discover a few more of those unknown unknowns. and it sounds like a riddle. >> still six years later brilliant. that's tonight's moment of geek. low politics and high art. we put links to phil klein's songs, john adams's opera and melissa's contata on msnbc.com. my identity was stolen when i was eight years old, and we didn't find out until i was going to get... my driver's permit at fifteen, seven months. i think the stories that affect me the most... are the ones i hear from children. they go off to start off in life, and by no fault of their own, they're already in a hole. you're supposed to, uh, protect your children. it's hard to protect them

. ♪ i don't recall >> the composers, john adams and phil klein both have used politics to make high arts composed an opera called nixon in china portraying nixon's peacemaking trip to china, complete with an air force one on stage. ♪ your flight was smooth o yes ♪ ♪ smooth ♪ and very pleasant >> back in 2004, phil klein released a trilogy of rumsfeld songs making music of the inadder vent poetry of donald rumsfeld. like rumsfeld's most famous assertions when reporters asked about the links between iraq's wmds and terrorism. we took the liberty of splicing klein's music from the original sound bites of mr. rumsfeld. ♪ as we know there are no knowns ♪ >> as we know, there are known knowns. there are things we know we know. there are no unknowns. that is to say, there are things that we now know we don't know. there are also unknown unknowns, the ones we don't know we don't know. and each year we discover a few more of those unknown unknowns. and it sounds like a riddle. >> still inscrutable, even six years later, but brilliant. that's tonight's "moment of geek" low politics and high art.