Missing Summary

atom:entry elements MUST contain an atom:summary element in either of the following cases:

• the atom:entry contains an atom:content that has a "src" attribute (and is thus empty).
• the atom:entry contains content that is encoded in Base64; i.e., the "type" attribute of atom:content is a MIME media type, but is not an XML media type, does not begin with "text/", and does not end with "/xml" or "+xml".

Ensure that there is at least a human readable summary or content for each entry.