Oh, I very much doubt that. Security, after all, is violence, and increasing it doesn't really make the world a safer place.
The great thing about democracies is that the President or the Prime Minister isn't important, not really. A democracy can afford to lose him or her; indeed, the very idea behind that form of government is that "the people" get to fire him or her if unsatisfied with the work. If it is made more difficult to get rid of the Boss, then the urge to do so will only escalate, and so will the means.