In the wake of the tragic shooting at Marjory Stoneman Douglas High School in Parkland, Florida, Emma González has risen to prominence for her leadership in the movement to advocate for stricter gun control laws. The high school senior first gained national attention for her rousing speech at a protest following the shooting. Since then, she has been a force for change, speaking out at every possible opportunity and even going head-to-head against NRA spokesperson Dana Loesch at a CNN town hall in February. And now, González is shutting down the proposal to arm teachers.

In a clip from an upcoming interview with 60 Minutes, González addressed the idea, which many conservatives have proposed as a solution to school shootings. González bluntly called the notion “stupid,” arguing that arming teachers would be too expensive.

The student activist then went on to discuss the problem of storing a weapon in the classroom.

60 Minutes also spoke to the parents of the Parkland students, including González’s mother, Beth.

Several politicians, including President Donald Trump, have argued that arming teachers would be the best way to prevent school shootings. But despite the myth that a “good guy with a gun” could prevent mass shootings, there is no evidence that arming teachers would work. On March 1st, a teacher in Georgia was even arrested for firing a gun in an empty classroom, demonstrating one of the many potential problems with this proposal.

We’re in awe of everything the Parkland students have done to advocate for gun control, including pointing out the problems with arming teachers. González’s full interview will air on March 18th at 7 p.m. ET on CBS, and we can’t wait to watch it.