hold load of crap, just grab and pack it in, I wonder how long it would take them to clean it all up. After all, all the man made stuff is from people shooting stuff up, so they should clean it up. Heck, maybe an extended mission where they just grab the junk, pack it together, and put it on a planned descent into a safe spot on earth, let it pile up in the middle of White Sands Range or the like. That would make a big difference to the near space environment.