Bravo to Susan Eisenhower for condemning “The NRA’s diabolical ad” [op-ed, Jan. 18]. Ms. Eisenhower is in an excellent position to point out why a president’s children and grandchildren require Secret Service protection as well as the downside they endure from such protection.

I would add that today, when opposing viewpoints give rise to such vitriolic, bizarre and unreasonable attacks, the dangers to a leader’s children probably are greater than ever. With this in mind, I hope that all our living past presidents, whether Republican or Democrat, would follow Ms. Eisenhower’s lead and let the National Rifle Association know that it is doing our country a great disservice by obfuscating the reasons why our presidents must have increased security for their families.

Sally Kranz, Washington