Which statement from Passage 1 best expresses the author's claim about the effect that space junk will have on the United States? "Millions more are too small to track but can still cause significant problems." (paragraph 2) "The space junk hurtles around earth at speeds up to 17,000 miles per hour." (paragraph 3) "In 2009, an abandoned satellite from another country collided with and destroyed a working American Communications satellite." (paragraph 7) "Most satellites orbit in an area that has become full of space debris, meaning the majority of them are at risk unless a solution is found." (paragraph 8)