This feed does not validate.
line 1, column 106573: (16 occurrences) [help]
... 72" width="72"/><thr:total>0</thr:total><georss:featurename>Katzen Arts ...
^
line 1, column 106737: (16 occurrences) [help]
... nt>38.9392074 -77.0871914</georss:point><georss:box>10.628973563821155 - ...
^
In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendations.
<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blog ...
<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blog ...
... 37122018/posts/default?redirect=false'/><link rel='alternate' type='text ...
^
line 1, column 105136: (109 occurrences) [help]
... y at&nbsp;American University's </summary><link rel='replies' ty ...
^