Ever cheaper and more plentiful -- brought to you all by the progress of capitalism.
As for how states may survive, Machiavelli has this to say (you may substitute the American Empire for the prince, and take "the people" to mean the "the people all over the world," not just "the American people"):
***** And one of the most efficacious remedies that a prince can have against conspiracies is not to be hated and despised by the people, for he who conspires against a prince always expects to please them by his removal; but when the conspirator can only look forward to offending them, he will not have the courage to take such a course, for the difficulties that confront a conspirator are infinite. And as experience shows, many have been the conspiracies, but few have been successful; because he who conspires cannot act alone, nor can he take a companion except from those whom he believes to be malcontents, and as soon as you have opened your mind to a malcontent you have given him the material with which to content himself, for by denouncing you he can look for every advantage; so that, seeing the gain from this course to be assured, and seeing the other to be doubtful and full of dangers, he must be a very rare friend, or a thoroughly obstinate enemy of the prince, to keep faith with you. And, to reduce the matter into a small compass, I say that, on the side of the conspirator, there is nothing but fear, jealousy, prospect of punishment to terrify him; but on the side of the prince there is the majesty of the principality, the laws, the protection of friends and the state to defend him; so that, adding to all these things the popular goodwill, it is impossible that any one should be so rash as to conspire. For whereas in general the conspirator has to fear before the execution of his plot, in this case he has also to fear the sequel to the crime; because on account of it he has the people for an enemy, and thus cannot hope for any escape....For this reason I consider that a prince ought to reckon conspiracies of little account when his people hold him in esteem; but when it is hostile to him, and bears hatred towards him, he ought to fear everything and everybody. And well-ordered states and wise princes have taken every care not to drive the nobles to desperation, and to keep the people satisfied and contented, for this is one of the most important objects a prince can have.
(Machiavelli, _The Prince_, Chapter 19 <http://www.sas.upenn.edu/~pgrose/mach/chpt19.htm>) ***** -- Yoshie
* Calendar of Anti-War Events in Columbus: <http://www.osu.edu/students/sif/calendar.html> * Anti-War Activist Resources: <http://www.osu.edu/students/sif/activist.html> * Anti-War Organizing in Columbus Covered by the Media: <http://www.osu.edu/students/sif/media.html>