I have not read or heard about this possible way of breaching the Trump Wall. How easy it would be to take hot air balloon passengers, either singular or in numbers, launched, from remote sites in Mexico, over the 30-foot wall.

Although I am not familiar with the operation of hot air balloons, I would think the movement and operation of the balloons would not be difficult to set up and operate.

Thinking ahead, the use of 24-hour surveillance with drones may help detection.

William W. Louie