SOME TOOLS OK
Interoperability: OK to make (a)(2) or (b)(1) tools to enable RE
Encryption/security: OK to make (a)(2) tools, but silent on (b)(1)
Law enforcement/national security: right to make tool arguably implicit
Is there an implied right to make a tool to engage in other privileged circumventions?
If OK to bypass copy control to make fair use, OK to make tool to do this?