It is absurd that Christina Mitchell, district attorney in Uvalde, must resort to suing U.S. Customs and Border Protection to compel three agents to testify.

The U.S.-Canada land border is the longest in the world, though none of it has a physical wall like at the U.S.-Mexico border ...

However, the guns disappeared and were found at crime scenes on both sides of the border — including the 2010 shooting death of Border Patrol agent ... the lax U.S. gun laws that contribute ...