If it sounds too good to be true, it usually is.
Got a link to an official Libertarian Party site with this statement?
I checked the official Libertarian Party site and could find only historical references to John Hospers. Google showed a lot of John Hospers links, but not to this letter [yet].
Maybe it is too good to be true.
The LP today is NOT the party that Hospers established. I wouldn't give you two nickles for it today.
Staying home and minding our own business won't stop terrorist attacks.