President Donald Trump will meet Wednesday and Thursday with people who have firsthand experience with mass shootings.

The meetings are not to console mourners and offer more thoughts and prayers. They are to help the president devise and enact immediate policies to stop school massacres.

The answer is gun control, on the campuses of schools.

Trump has proven himself a pragmatic executive who quickly enacts policies with immediate returns, whether cutting taxes and regulations, authorizing pipelines or defeating terrorists.

Despite all else, mass shootings of kids could define his presidency. He can be the president who put an end to the madness, or another who did not know what to do.

We repeat, Mr. President: Securing access to schools represents the fastest and surest way to save students from terror. We can see results before the end of this year, if progress begins this week.

Society can and must have discussions about sensible and lawful regulations of guns. Bump stocks are stupid and should not be allowed. People with serious mental illnesses should not have guns. Maybe we should reconsider the age limit for obtaining semi-automatic rifles and pistols.

Society should learn to better identify troubled individuals, so interventions might prevent them from acting out in rage.

All big-picture measures are worth consideration. None will likely prevent additional massacres anytime soon. Long-term regulatory and social adjustments cannot stop a determined killer from using a gun, bomb, machete or blow torch to kill children and teachers clustered in classrooms or hallways of a school.

The answer is not a dark or untested science, too complicated to enact. Israel figured this out 40 years ago. Israeli schools are difficult and unappealing targets and are seldom the scenes of mass violence.

Israeli law imposes strict security standards on all educational institutions with 100 or more students. The Security and Emergency Department of the Israeli police regulates the system, staffed mostly by private security companies that work directly with local law enforcement.

Security officials inspect attendance centers 30 minutes before school starts, ensuring the absence of devices or unauthorized individuals. They screen vehicles and individuals entering school grounds for weapons and drugs. Law allows only guards, authorized Education Ministry personnel, the police, and members of the Israeli Army to have guns on any campus.

American schools largely count on signs to keep weapons and drugs at bay.

With serious security measures, we can keep nearly 100 percent of predators, guns, knives, weapons and explosives out of our schools. It works for office buildings, courthouses, theaters, airports, and sporting venues. It works for Israeli schools.

President Trump, lead on this issue. Make the bold case for federally ensured school safety standards. Become the president who saves our children, securing schools as peaceful and safe spaces for students to learn and teachers to teach.

Start this week. Inspire the bipartisan Safe Schools Act of 2018 and sign it into law. It is far past time to stop school violence.