Wait a minute. I'm confused. If that is what Lucas originally wanted, then why didn't he write it that way to begin with? Is he saying that he originally wanted Greedo to shoot first and did not have the technology? It seems from the editing in the original version that Han was planning to shoot Greedo from the get go. Which is how things should have stayed.

Of course Han would shoot first, otherwise he would have been killed, and that would have sucked.

And there would have been no movie.