Depends on the paper's style book, whether couple (and pair) is considered a collective noun, like data: "The data say gas prices will increase." Sounds weird, but it's correct because datum is the singular.
The Globe and Mail uses couple as a plural. The Toronto Sun uses it as singular. The plural usage is more British side of the pond. You'd find "government are" in any British online paper. Strange, though, that couple would be considered a collective noun in a U.S. paper. Maybe a Brit wrote the headline and it slipped past (or the head wouldn't fit with an "s" on it).
Edit: kbeartx beat me to it with "data."