Project Hi-Psi

The aliens were conducting an experiment under laboratory conditions. So, how could they guess that their guinea pigs held the ultimate weapon?
Dr. Lucifer Brill stepped briskly down the corridor of the Federal Building. The taps on his leather heels clicked a precise rhythm on the marble floor.
He ignored the door that offered Information , passed up office after office until he came to the glass paneled door which informed him that behind it functioned the Director of FBI operations in the Los Angeles area.
The door was locked.
Lucifer Brill rubbed the knuckles of his left hand over the bristles of his sand-colored, neatly trimmed bit of mustache. It was a gesture known to all graduate students, Department of Parapsychology, Western University, as an indication of annoyance.
The possibility of this office being closed had definitely not been part of Lucifer Brill's prospectus.
A movement behind the opaque glass panel caught his attention. He rattled the knob. When this produced no results, he tapped with his immaculate fingernails on the glass.
A shadow moved inside the office. The lock clicked. The door opened.
An overweight young woman, obviously interrupted in the act of painting a lush mouth over thin lips, glared at him through a veneer of politeness.
Yes?
I have an appointment with the Director. Lucifer Brill's voice still carried the twang of boyhood in Chelmsford, Mass.
The young woman's plucked eyebrows arched.