Commentary ROARING SPRING, Pennsylvania—When the Appvion Inc. paper mill plant shut its doors for good on April 1, putting 293 people out of work, it marked the first significant manufacturing loss in this state since President Joe Biden took office. “We were all completely blindsided,” said state Sen. Judy Ward, who claims she and other local officials had no hint that the plant, founded in 1866, was in danger of shuttering. If you received a stimulus check in the mail, there’s a good chance the men and women who work here produced the paper it was printed on. And yet there will be no stimulus for this factory, which produces carbonless security paper for official documents like car titles and house deeds. Of the 293 jobs lost, 250 of them will be union; the rest are management. The average person here makes around $67,000 a year, based on a 49-hour …