Zoe Lofgren actually said...

it is important that, as with the most of the museums, that this be available on a free basis to the public, if at all possible.

nothing is impossible.

If this was a mandate that could have been easily fulfilled, it would have been fulfilled back in the 1990's when it was first implemented.

I don't think anyone opposes the idea of keeping track of when people enter and exit the country.