At 12:17 a.m., I watched my daughter-in-law quietly unzip my suitcase and hide a black pouch inside. Then she whispered into her phone, “It’s in her carry-on. Tell airport security at six.” I pretended to sleep, my heart racing. She expected to see me arrested the next morning. What she didn’t know was that I’d spent twenty-eight years investigating fraud—and my hidden camera captured everything she did.