At 12:17 a.m., I watched my daughter-in-law secretly unzip my suitcase and slip a black pouch inside. Then she whispered into her phone, “It’s in her carry-on. Tell airport security at six.”

I contacted my former colleague Daniel Brooks, who now worked in airport security investigations.

“Daniel,” I whispered, “someone has planted something in my luggage. I need help reporting it safely before I travel.”

His tone became serious.

“Margaret, don’t handle it. Stay away from the suitcase. I’m contacting the appropriate officers.”

I forwarded the footage.

Then I sat by the window, watching darkness settle over the neighborhood.

Brittany believed the following morning would end with me in handcuffs at the airport.

She hadn’t realized she’d targeted someone whose entire career