Pfaus's visit and subsequent contacts with the IRA did, however, allow the Germans to become acquainted with IRA support and operations in the United States and in due course to send an agent, Karl Franz Rekowski, to the U.S. where he arranged for the IRA to carry out sabotage attacks such as the 1940 attack on the Hercules Powder Company plant in New Jersey in which 52 people died and a further 50 were injured.