"I remember seeing their new manager, Brian Epstein, standing to the right of the stage in a dark overcoat."

“Another lovely day in Scotland,” he muttered as he flipped up the collar of his overcoat and braced for the cool, damp air that would greet them outside the station.

I reached for the hem of his overcoat.

Then, 50 men identically dressed in truncated gray suits and khaki overcoats entered in rows and, cued by the ringing of a taskmaster’s bell, performed workaday activities like typing and eating lunch.

Roughly the size of an overcoat button, an AirTag signals its location wirelessly to Apple’s iCloud service so it can be traced with Apple’s Find My app.