Igor Schreiber and Miloš Marek are professors of Chemical Engineering at the Institute of Chemical Technology in Prague, Czech Republic. Otto Hadač and Martin Khout are researchers and PhD candidates in the same department. Milan Kubiček is a PhD candidate in the Department of Mathematics, Institute of Chemical Technology, Prague, Czech Republic. According to a report published by the Public Safety Commission, theft of catalytic convertors in Chicago, IL, USA, rose sharply by 150% in 2011. Table: 1 Figures: 15-17, 51-52 Plate: 14 Endnotes: 50-62