The main purpose of this legislative text is to enhance the security of the United States Postal Service (USPS) by addressing the issue of theft related to mail and USPS property. The objective is to ensure that Congress receives regular updates on the extent of this problem and the effectiveness of measures taken to combat it. Key provisions of the legislation require the Comptroller General of the United States to conduct investigations into theft incidents involving mail and USPS property. These investigations must occur annually for five years, starting one year after the law is enacted.