system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does Congress "want" to pass surveillance bills like CISA?

Like the title says, why do Congressmen (and women) keep introducing and working to pass these bills? What is the motivation? What do they get out of it? I would think by now voters would be sufficiently against it such that it wouldn't be something they'd want to do since what they want most of all is to get reelected.
gpt
People are afraid and some of them are willing to sacrifice elements of their privacy for their security. Some of those people are elected officials who don't want the responsibility of being accused of not doing enough to stop the next terrorist attack. 

If you watched the Republican Presidential debate this week, there were several candidates up there who were upset that Congress recently stopped the NSA metadata program, which collected metadata on every phone call in the country, because they felt it made us more unsafe. Liberty vs. Security. It's a pretty old dichotomy, and you could insert that old Ben Franklin quote right about here, but it's a trade-off that still exists and the threat of terrorism has made it ever more real.