21.   After the conductor disappeared, I watched through the glass in the locked doors that separated first-class from economy class as a middle-aged man jimmied the locks.

22.   Agents watch through an array of night-vision scopes, hidden in tarp-draped vans on hillsides or lying in wait along trails.

23.   All around, alert FBI snipers watched through their scopes as Gritz approached the cabin, put his hands on it and talked to Randy.

24.   Commander Dick Richards, pilot Blaine Hammond, robot arm operator Susan Helms and crew physician Jerry Linenger watched through the windows of the crew compartment, snapping photographs.

25.   Danny Rolling had been spying on her for days, watching through a window as she took a shower.

26.   Each committee member was assigned a group of conferences to watch through the season.

27.   For several days after the maple fell, I watched them through this window where I work.

28.   From the patio of our rented condo we watched through a spotting scope as an osprey peered down from a tall pine at a pond full of trout.

29.   He eases into the brake pedal, then watches through sunglasses as the scene recedes in his rearview mirror.

30.   He then watched through a back window as Nancy frantically fished the checks out of the trash and, finding them blank, lit out after him.