W: GPG error: http://archive.gnewsense.org deltah-backports Release: The
following signatures were invalid: KEYEXPIRED 1252532309 KEYEXPIRED 1252532309
KEYEXPIRED 1252532309
W: GPG error: http://us.archive.gnewsense.org deltah Release: The following
signatures were invalid: KEYEXPIRED 1252532309 KEYEXPIRED 1252532309 KEYEXPIRED
1252532309
W: GPG error: http://us.security.gnewsense.org deltah-security Release: The
following signatures were invalid: KEYEXPIRED 1252532309 KEYEXPIRED 1252532309
KEYEXPIRED 1252532309
W: You may want to run apt-get update to correct these problems