Ten years ago, a deranged young man blasted his way into the Sandy Hook Elementary School in Newtown, Connecticut. He killed 20 first-grade children and six staff members, including the principal, who tried to stop him at the school’s door.

The nation was stunned. President Obama wept. There was a widespread sense that this heinous act would lead to decisive action by Congress. It didn’t. The gun violence against children continues.

Why? The Republican Party has sworn allegiance to an extreme interpretation of the Second Amendment in which every person has the unfettered right to own and carry guns. and the Supreme Court, now securely in the hands of hard-right conservatives after Trump added three justices, is overturning long-standing limits on gun ownership. There are more guns than people in the U.S., and so far as conservatives are concerned, there is no need to restrict their availability and use (except in the halls of Congress, the Supreme Court, and other special places.)

Among the weapons used at Sandy Hook were a Bushmaster XM15-E2S and a Glock 20SF handgun. The killer first murdered his mother, who bought the guns and took him to firing ranges. When fist responders arrived, he killed himself.

Not long after the massacre of babies at Sandy Hook, the professional liars entered the scene. They said that there was no massacre. Everything we saw on television was staged, they said. The “parents” who were mourning were actually “crisis actors.” Someone sent me a link to a video purporting to show that Sandy Hook never happened; it was a hoax created to promote gun control legislation.

Alex Jones leapt on the story and repeatedly broadcast it to his many followers. Some of them harassed the families who had lost a child or a mother or a sister, even sending them death threats.

Alex Jones has this year been convicted of defamation and ordered to pay fines exceeding $1 billion. He moved his assets and declared bankruptcy.

There have been so many mass murders in the past decade that it’s impossible to remember them all. We remember the massacre of 17 people at Marjory Stoneman Douglas High School in Parkland, Florida, both because of the numbers and the heroic response of the survivors, who lobbied fiercely for gun control. Uvalde got our attention because of the number of children killed: 19, along with two teachers. And it got our attention because of the sheer incompetence of the law enforcement officers, who arrived on the scene by the hundreds and failed to enter the classrooms where the killer was for over an hour.

Of one thing we can be sure, there will be more mass killings of students. Uvalde will not be last. Schools now practice active shooter drills. Some teachers are armed. School security has been enhanced. Door locks are common.

But when the next killer pulls a gun out of his backpack or blasts through the entry with an assault weapon, children and staff will die. We will mourn them and their teachers as we have before. And then there will be another. And another.

Nothing will change until we enact strong gun control laws that limit access to guns. That won’t happen unless the voters elect people sworn to protect the lives of their children.