Wait until you find out about the DHS. Unlike interactions with the FBI, it is illegal to record them*. They do not wear body cams. You have no right to a lawyer when interacting with them. They can jail you without charging you or accusing you of a crime. They can search you without probable cause or a warrant. They can put you in cuffs, take you to a hospital, and lie to doctors that you have drugs up your ass, all without a warrant, and then you'll be sent thousands in medical bills for medical services you didn't consent to.** They can stop you on the road without reasonable suspicion / PC / a warrant. They consistently have the among the worst human rights record and hire the lowest quality candidates, and arguably have the least oversight of any of the large federal law enforcement agencies.

*at the border, where most people have this ineraction with their child organization CBP.

**Actually happened to me.