American Airline bankrupted. The US lost way to travel into space by Space Shuttle retirement, and now they are losing way to travel abroad and even inside the country. There are some airlines in the US, e.g. Delta, United, so AA bankrupt is not very serious problem. Even so, airplane is the major transportation in the US, because they do not have good railway system. We see news for EU crisis and Japan economy issue, though, USA may have more downgrading in world economy that US dollar exchange rate is showing us. I do not know why this is happening. I am a bit worry about that the US is not safe country. I hope they do not start wars for just recovery USA economy by weapon consumption.