Actually, it is tough to operate such body shops: USCIS has hired contractors to do audits/random checks on these consulting companies and their employees. So,

Actually, it is tough to operate such body shops: USCIS has hired contractors to do audits/random checks on these consulting companies and their employees. So, outright fraud is very hard these days. That's also another reason why USCIS is going after the employers, who are not typical body shops operating out of some office in Edison, NJ., Kalamazoo, MI., etc.