Opinion: Guns are the leading cause of death among children in the U.S. Where's the outrage?

Re "Poway district must do more to protect students" ( April 10 ): One issue the author fails to mention is the necessity of reducing gun violence through national legislation that limits access to killing machines like assault weapons and so-called ghost guns with no serial number. This was not the case when the Second Amendment was approved in 1791.

While it is true that many perpetrators of gun violence have mental issues, it is also true that other countries have people with mental health issues but nowhere near the numbers of those in our country with access to lethal weapons. It is appalling to consider that gun violence is the No. 1 cause of death of children in our country. Where is the outrage?

— Rosemary Johnston, San Diego

This story originally appeared in San Diego Union-Tribune .