Debian testing repository broken?

[Zach <netrek@gmail.com>]

Never gotten this error before. I am running Debian testing and I am
doing an 'apt-get update' as it instructs but I still get the error:

I have copied this to the debian-testing group since this may be a
problem with apt.

netrek:~# apt-get update
Get:1 http://http.us.debian.org testing Release.gpg [189B]
Hit http://http.us.debian.org testing Release
Hit http://http.us.debian.org testing/main Packages/DiffIndex
Get:2 ftp://ftp.real-time.com etch Release.gpg
Hit http://http.us.debian.org testing/contrib Packages/DiffIndex
Hit http://http.us.debian.org testing/non-free Packages/DiffIndex
Hit http://http.us.debian.org testing/main Sources/DiffIndex
Hit http://http.us.debian.org testing/contrib Sources/DiffIndex
Hit http://http.us.debian.org testing/non-free Sources/DiffIndex
Ign ftp://ftp.real-time.com etch Release.gpg
Get:3 ftp://ftp.real-time.com etch Release [3156B]
Get:4 ftp://ftp.real-time.com etch/custom Packages/DiffIndex
Ign ftp://ftp.real-time.com etch/custom Packages/DiffIndex
Get:5 ftp://ftp.real-time.com etch/main Packages/DiffIndex
Ign ftp://ftp.real-time.com etch/main Packages/DiffIndex
Get:6 ftp://ftp.real-time.com etch/non-free Packages/DiffIndex
Ign ftp://ftp.real-time.com etch/non-free Packages/DiffIndex
Get:7 ftp://ftp.real-time.com etch/contrib Packages/DiffIndex
Ign ftp://ftp.real-time.com etch/contrib Packages/DiffIndex
Get:8 ftp://ftp.real-time.com etch/custom Packages
Ign ftp://ftp.real-time.com etch/custom Packages
Get:9 ftp://ftp.real-time.com etch/main Packages
Ign ftp://ftp.real-time.com etch/main Packages
Get:10 ftp://ftp.real-time.com etch/non-free Packages
Ign ftp://ftp.real-time.com etch/non-free Packages
Get:11 ftp://ftp.real-time.com etch/contrib Packages
Ign ftp://ftp.real-time.com etch/contrib Packages
Hit ftp://ftp.real-time.com etch/custom Packages
Get:12 ftp://ftp.real-time.com etch/main Packages [4056B]
Hit ftp://ftp.real-time.com etch/non-free Packages
Hit ftp://ftp.real-time.com etch/contrib Packages
Fetched 7401B in 16s (441B/s)
Failed to fetch
http://http.us.debian.org/debian/dists/testing/main/binary-i386/PackagesIndex
MD5Sum mismatch
Reading package lists... Done
W: Couldn't stat source package list http://http.us.debian.org
testing/main Packages
(/var/lib/apt/lists/http.us.debian.org_debian_dists_testing_main_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list http://http.us.debian.org
testing/main Packages
(/var/lib/apt/lists/http.us.debian.org_debian_dists_testing_main_binary-i386_Packages)
- stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
E: Some index files failed to download, they have been ignored, or old
ones used instead.

Here is my /etc/apt/sources.list :

deb http://http.us.debian.org/debian testing main contrib non-free
deb-src http://http.us.debian.org/debian testing main contrib non-free
deb ftp://ftp.real-time.com/linux/real-time etch custom main non-free contrib

Regards,
Zach