[• The U.S. homeland is better protected. America has become a land scoured, probed, patrolled and fenced by a web of informers, computers, guards, spies, tape recorders, detectors, sensors, Jersey barriers, concrete planters and bomb-sniffing dogs. It may have nipped some plots in the bud and deterred others.] We look differently as a country now to the terrorists, ... We have created security measures unlike the terrorists have seen before, and we continue to upgrade them.