improve wording

 and

    http://w3.access.gpo.gov/bis/ear/pdf/740.pdf (EAR Section 740.13(e))

 for the details. If "your encryption source code is too large to serve as

 an email attachment", they are glad to receive a fax instead; hope you

 an email attachment", they are glad to receive it by fax instead; hope you

 have a cheap long-distance plan.

 Our preferred format for changes is "diff -u" output. You might