I think that cloning, along with a lot of already in use fertility
treatments, is going to far. We are messing with mother nature, and it's
going to bite us sooner or later.
We have these ways of producing offspring that would never naturally
happen. That seems like messing with mother nature to me.
I know a family friend that tried for years to get pregnant. She had about
12 miscarriages. She went to a fertility doctor and found out that her and
her husbands dna were simply not compatible. They went through daily
injections of some experimental drug along with some type of blood transfusions
so that she wouldn't reject the baby. She finally carried it to full
term. He was a very quiet and always happy baby, so they tried it
again (and failed). They were about to try again until they found out
that their "quiet and always happy" baby was not developing
normally. He was soon diagnosed as being severely
autistic. There was a very valid reason why they should not
have had a child.
I think that we have better things to research than cloning, like
diseases that effect millions of people: MS, Lupus, AIDS, Cancer, etc.
And, I don't believe that a clone could be like the person that it
was cloned from. What makes us "us" isn't the tissue we are made of- it's
our life experiences and our views. Identical twins are similar.
Even if they are always around each other and have pretty much the same life
experiences, they will still be quite different from each other. There is
no way to "replace" somebody.
And, don't even think about raising the dead, you just end up with a "Pet
cemetery" situation on your hands 