Ask journalists why they do the job they do, and you’ll hear a range of answers. Here’s mine: Not every day, but on the best ones, we get to put questions to powerful people and hold them to account. This is both a privilege and a responsibility.

January has been an interesting month on this front. I’ve had the opportunity to put questions, one on one, to the top diplomats of both the United States and Iran, in their respective capitals.

Iran’s foreign minister, Javad Zarif, spoke to me on Jan. 7 in Tehran. Secretary of State Mike Pompeo spoke to me last Friday, in Washington. Each man represents a nation in conflict with the other; speaking with them, I wondered what path either could see out of the situation. In both cases, I was allotted 10 minutes for questions.

It turns out you can cover a lot of ground in 10 minutes. When Mr. Zarif sat down with me, on the sidelines of a big think tank conference focused on security in the Persian Gulf, it was just four days after an American drone strike had killed Maj. Gen. Qassim Suleimani. We started there.