In an October 2 filing in the Federal Register, the Labor Department wrote that the near-total halt of immigrant labor plus stepped-up enforcement creates “a sufficient risk of supply shock-induced food shortages” to justify immediate action. The same filing said unemployed Americans will not make themselves available “in sufficient numbers” to replace the workers being removed, and estimated 42% of the U.S. crop workforce is now blocked from entering, facing deportation, or leaving the country.