Beginning in February, students throughout Quebec began protesting against a proposed 75 percent hike in the cost of their tuition. Demonstrators staged strikes, sit-ins, and marches, in some cases drawing hundreds of thousands of participants and incurring hundreds of arrests. Quebec's government responded by passing a controversial emergency law, Bill 78, that places strict limits on free assembly, including a provision that requires demonstrators to submit protest plans and receive police approval. Reacting to the new law, hundreds of thousands more took to the streets to join the broadening protest. Now, four months later, nightly demonstrations continue across Montreal. These marches are called "casseroles," as participants use pots and pans to create noise and call for attention.