Since 9/11, the government has done a number of things (that are directly related to terrorism) to try to increase national security. Let's look at three examples.
- Transportation Security Administration. There is so much more security screening at airports today than there was before the attacks. This is perhaps the most visible aspect of heightened concern for national security.
- The war in Afghanistan/use of drones in Pakistan and elsewhere. The government is trying to make it impossible for Al Qaeda and other terrorists to set up camps and strongholds anywhere in the world (as they did in Afghanistan before 9/11).
- Patriot Act. The government has taken for itself more expansive powers to conduct surveillance on and otherwise investigate suspected terrorists.