That was deliberate.

“It seems a little presumptuous, when you’ve got the land mass and the talent that we do, to ask for more,” he told me recently.

But there was an additional reason he didn’t mention God, so commonly praised in the halls of government, so prevalent a fixture in public discourse.

“I think you have to be very, very careful about keeping religion and politics separate,” Kerrey said.

We Americans aren’t careful at all. In a country that supposedly draws a line between church and state, we allow the former to intrude flagrantly on the latter. Religious faith shapes policy debates. It fuels claims of American exceptionalism.

And it suffuses arenas in which its place should be carefully measured. A recent example of this prompted my conversation with Kerrey. Last week, a fourth-year cadet at West Point packed his bags and left, less than six months shy of graduation, in protest of what he portrayed as a bullying, discriminatory religiousness at the military academy, which receives public funding.

The cadet, Blake Page, detailed his complaint in an article for The Huffington Post, accusing officers at the academy of “unconstitutional proselytism,” specifically of an evangelical Christian variety.

On the phone on Sunday, he explained to me that a few of them urged attendance at religious events in ways that could make a cadet worry about the social and professional consequences of not going. One such event was a prayer breakfast this year at which a retired lieutenant general, William G. Boykin, was slated to speak. Boykin is a born-again Christian, and his past remarks portraying the war on terror in holy and biblical terms were so extreme that he was rebuked in 2003 by President Bush. In fact his scheduled speech at West Point was so vigorously protested that it ultimately had to be canceled.