We had to do this when I landed at Barajas in mid-June. Except the policy was brand-new and the Iberia crew had no foreknowledge of it. The plane was met at the terminal by some functionary with a stack of forms and they told the crew that if every passenger didn't fill it out, we couldn't deboard. So with everyone already standing in the aisles with their luggage waiting to go, they passed them around.

It was a silly form. When asked where in Spain I was staying I wrote "We're just passing through on our way to Portugal" - I was tempted to add "so don't worry about my cough" but was already worried about catching the connection to Lisboa.

We handed them to an Iberia crew member when we got off the plane, who looked like she was just going to drop them on some desk somewhere. Seemed a mostly pointless exercise.

And the world will live as one