Chinese spies target Taiwan's US-made defenses Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 07:51 p.m., Wednesday, March 21, 2012 While Taiwan's Defense Ministry did not disclose details of his alleged offense, his base in the northern part of the island hosts the air force's highly classified radar system and U.S.-made Patriot surface-to-air missiles, both vital to the island's aerial defense. Chiang's arrest followed that of Maj.