This, to me, is the real long term solution to the war on terror. All of humanity uniting behind Life Extension.
SUUURRREEE they will!!! Instead, what you will see is a gigantic increase in conflict to see whose life gets extended. Either you will have a two-class society ("immortals" and "mundanes") with the "immortals" in charge, or you will see an absolute totalitarianism formed to "get immortality for everyone", and at the same time prevent the massive population boom that such longevity will produce.