Tobin Harshaw, Columnist

Good Nukes, Bad Nukes and Iran’s Nukes

Negotiations with Tehran are made infinitely worse by the Trumpian chaos surrounding America’s foreign-policy brain trust.

Up in arms.

Photographer: Joe Klamar/AFP

This is Bloomberg Opinion Today, the special envoy for all sorts of overseas crises for Bloomberg Opinion’s opinions. On Sundays, we look at the major themes of the week past and how they will define the week ahead. Sign up for the daily newsletter here.

This morning’s quick quiz is a two-parter: