Ag-gag refers to laws or measures that prevent people from recording or disclosing information about what happens on factory farms or slaughterhouses. They are called "ag-gag" because these laws "gag" people from sharing the truth about the agriculture industry.
Imagine you are visiting a farm where animals like cows, pigs, and chickens are raised for food. You see some things that don't seem quite right - like animals being kept in tiny spaces or being mistreated by the workers there. You decide to secretly record what you see with your phone camera, so you can show it to other people who might want to know what really happens on these farms.
But, ag-gag laws make this illegal in many states. If you're caught recording on a factory farm, you can be fined, sued for damages, or even put in jail. The reason for these laws is that some farmers say the recordings can hurt their business by making them look bad.
Critics argue that ag-gag laws take away freedom of speech and conceal mistreatment of animals, food safety issues, and environmental problems. So, some people believe that they should be repealed, as everyone has the right to know where their food comes from and how animals are treated.