Cut off the benefits and use the savings to built a fence in the places that need it most.
OK...I’ll go for that as well.:)
I agree 100% about cutting off the benefits, but building a fence "only where it's needed" is as foolish as putting a fence only 10% of the way around a swimming pool, where kids have been usually seen sneaking in. Putting up border fencing only in "high travel areas" just moves the "high travel areas" to another location.