Tell us: what can be done to prevent mass shootings in the US?

We'd like to hear what kind of action people believe could be taken to curb prevent gun related mass killings in America

Nineteen students and two adults have been killed at Robb elementary school in Uvalde, Texas.

In light of the worst school shooting in America since Sandy Hook, a decade ago, we'de like to know what people think should be done to prevent future incidents of gun-fueled mass killings in the United States.