NASA seeks orbital broom for space junk

Author: None
Title of article: NASA seeks orbital broom for space junk
Publication: New York Time
Date of article: Feb/19/2012
Summary:
     There is lots of space junk running with earth in outer space. They will cause two problems, than two junk will fall into the earth to hit humans ,and two junk will hit artificial satellites. On the other hand, big space junk will become small of junk if two piece run into each other. Therefore, there will be more and more fragments that fly in spaces if we do not clean it. There are several problems of different countries' artificial satellites that cannot be cleaned in other country; it will cause each country to have problems and battle each other.

Issues:
1. Should people have to clean the space junk as fast as they can?
2. How do you fell about each country's problem?
3. What do you think is the best way to clean it?

My opinion:
     Lots of space junk is running in outer space around the earth. It will become more dangerous if people want to travel in space. The artificial satellites will be destroy by large space junk; it will cause more and more junk and break useful artificial satellites, Therefore, I think every country should pay for a cleaner to the country who wants to produce the cleaning machine to clean the space junk.