The Europeans wanted to build empires for a couple of other reasons than economic ones. They were running out of open spaces was one of the reasons. The other major reason is that the more land you held, the more powerful it made you seem. They also wanted to Christianize the native peoples.
I believe the answer is: <span>It should work unless his son has hit puberty.
The height that we have is determined by the distance that separate our bone discs. When we finished puberty, the distance between the discs could no longer be grown, so doing things such as consuming growth hormone would do no effect.</span>
Politics also must balance security with individual liberty because many possible and actual safety measures involve restrictions on liberty.