I heard this morning on the (semi-conservative FM radio) that this was a national security issue, and that Apple is helping terrorists in not bypassing this. I

I heard this morning on the (semi-conservative FM radio) that this was a national security issue, and that Apple is helping terrorists in not bypassing this. I don't get it- the shooters are dead. How is what is on their phone a matter of national security? We probably have 99% of the information we'll ever have on them. There is no larger plot. Not having what's on this device I cannot imagine puts anyone at risk.