charset philosophy

Hi, IETF-822 People!

Just a quick question to see how others feel about this:

If we send a plain ASCII text message and we wish to label it with a
content type header and a character encoding identifier, we include
the following:

        Content-Type: text/us-ascii

Today, when ASCII messages cross a border into an EBCDIC world, they
are converted to EBCDIC. Assuming that such a gateway is fully
upgraded to conform to the new RFC-XXXX, what should be done about the
content type header? Should it be changed to the following?

        Content-Type: text/us-ebcdic

Or something like that?


Thanks in advance for any replies,
EvdP