No moment symbolized a country's greatness better than when the first Americans walked on the moon. In 1969, our entire nation, as well as countless others, watched in stupefied wonder as three astronauts performed their mission flawlessly. It was a triumph that united a nation embroiled in many divisive issues that were pitting neighbor against neighbor. Today we find ourselves divided as a nation once again, but fortuitously, history has given us the solution. We must learn from the past and renew the program to send astronauts to the moon.

Why is the argument weak?

1 it falls to consider numerous other more-recent space missions.

2 It is based upon an obviously blased statement that people are divided.

3 It likely overstates how much the moon landings solved divisive Issues.

All of the given reasons make the argument weak. The mentioned space missions are not considered, which weakens the argument's premise that sending astronauts to the moon is the solution. Additionally, the argument assumes that people are currently divided without providing any evidence or considering alternative perspectives. Lastly, the argument overstates the impact of the moon landings in solving divisive issues, as it is not clear how directly related these events were to the unity of the nation at that time.