1) The United States has experienced both successes and failures as it has constantly changed and evolved over time, similar to other great civilizations throughout history.
2) While the U.S. currently faces failures in its economy, education system, and prolonged wars, it has also had successes such as maintaining a stable democracy and becoming a military superpower.
3) The U.S. is evolving by addressing issues like climate change and improving technology, but increasing diversity has caused it to lose some of its unique identity.