We have forgotten them:

There were several pieces on the news today about the Challenger tragedy, which occurred twenty years ago tomorrow.

I kept waiting for some link in the story to today's date, which is the anniversary of the Apollo 1 fire in 1967. But there was no mention of Ed White, Gus Grissom or Roger Chafee.

I guess we'll have to wait until next year, when "40 years ago" is more newsworthy than 21.