Raimi war hier

Hm, seems as Debian Etch is converging towards being stable some key magic is to be applied again. Symptom on apt-get update:

W: There are no public key available for the following key IDs:
A70DAF536070D3A1
W: You may want to run apt-get update to correct these problems

Now, as this message explains a proper way of obtaining this key (which seems to be the etch release key) is:

apt-get install debian-archive-keyring/unstable

or when you are using sid (or whysoever):

apt-get install debian-archive-keyring

And that's it. Let's see if I remember that next year :)