1. Even if they did go again the conspiracy morons would claim that too was a conspracy and some how faked.
2. Just asking this demonstrates ignorance beyond believe, in orbit with the shuttle it's only another 198500 miles to go, yeah just drop in, right oh.
3. the largest object even the hubble can see is 82metres much bigger than any debris left.
4. there is approx 600 kg of moon rock in all over the world. Many institutions have examined moon rock none have doubted it's origin. In fact there was a documentary on a couple of years ago asking the question of how you would go about faking it, the conclusion was that it is easier to go to the moon and get some.
Now try and think for yourself instead of buying in to this horsesh1t. See here:
http://www.clavius.org/