[he had previously been hired to install a bunker for a homeowner]
Hmm. Was he part of the bunker building in back of the White House? Is there is a hidden bunker as well as a tunnel to the White House property. (the MO garden) Could that be where the illegal surveillance is coming from?
Mystery construction site at White House: Whats all the commotion? (2011)
Excerpts...
The four-year, $376 million construction project is being supervised by the General Services Administration (GSA), which says the work is needed to upgrade underground utilities such as water and sewer lines and electrical conduits.
The congenitally suspicious White House press corps speculates endlessly on what really is being built. One theory is that a tunnel, visible in the construction, is an underground escape route for the president between the West Wing and the adjoining office building. Not so, says the GSA. The structure is a utility access pathway, Ms. Merriam says.
$376 million for utilities?