Final answer:
In the event of a bomb threat, cell phones, radios, and Wi-Fi-enabled devices should not be used as they emit radio frequencies which could detonate a bomb. All such devices should be turned off and emergency protocols followed.
Step-by-step explanation:
In the event of a bomb threat, it is important not to use any device that could potentially trigger an explosive device. This includes avoiding the use of cell phones, radios, and any other devices that emit radio frequencies (RF), as they can accidentally detonate a bomb if it is sensitive to such signals. Additionally, Wi-Fi-enabled devices should not be used, because they also emit RF signals that could potentially act as a trigger. It's advised to turn off all such devices and follow any instructions given by authorities and the established emergency protocols for such situations.