When Idiots Edit

From page 1 of today's NY Times (and above the fold): "When Foreigners by the Factory." I read the headline several times trying to figure out what it meant. I note that "by" isn't capitalized" because it is a preposition even though it should have been "Buy." How could this be missed? I have made my share of typos, but this is egregious.

Here's the article from the Times website without a typo.