A few people reported a problem downloading packages from the EPEL repo, specifically error 404 messages. They've now been fixed. Please let us know -- via the public mailing list -- if problems continue.
You may have to do a `yum clean all` if repository metadata is cached on your system. Here is the exact error that was reported:
# yum install scap-security-guide ........ Downloading Packages: (1/3): openscap-0.9.2-1.el6.x86_64.rpm | 2.8 MB 00:01 (2/3): openscap-utils-0.9.2-1.el6.x86_64.rpm | 41 kB 00:00 http://repos.fedorapeople.org/repos/scap-security-guide/epel-6/noarch/scap-s...: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404" Trying other mirror.
Error Downloading Packages: scap-security-guide-0.1-9.noarch: failure: scap-security-guide-0.1-9.noarch.rpm from epel-scap-security-guide: [Errno 256] No more mirrors to try.
scap-security-guide@lists.fedorahosted.org