Westport, Ireland (or Cathair na Mart for our Irish-speaking readers, both of you), has a population of about 5,000. It sits in the shadow of an ancient mountain, the end point of an annual pilgrimage, where Saint Patrick is said to have fasted for 40 days and 40 nights. It’s a town of brightly colored storefronts, tweed flat caps, and wide smiles.

More than 1,200 people work at a plant on the edge of town. It’s owned by the drug company Allergan, and since 1994 it has produced all the Botox.