"Giant bacteria-filled balloon" is actually David Vitter's nickname.

An architect named Magnus Larsson is promoting his plan to stop the spread of the Sahara desert by putting up a 6,000 kilometer long wall stretching from Mauritania to Djibouti. He thinks that this can be done with a “barrage of giant bacteria-filled balloons.” Meanwhile, the President of the United States of America is promoting his plan to bring healthcare in his country up to the standards of the rest of the Western world. He thinks he can do this by getting legislators to act like responsible stewards of their constituents' future. Which of these guys is the more quixotic?