We didn’t want to invite John Walker Lindh to our Memorial Day party, but his potato salad is so damn delicious

WASHINGTON—Every year, millions of Americans gather on the last Monday in May to drink, barbecue, socialize, and remember the fallen. But we all have that one friend who we know would be an unwelcome addition to the party. Nobody wants to invite him, but his potato salad is just so good that we have to.

That’s what happened when we heard that “American T…