CPAN tells me that XML::SAX::PurePerl is up to date. When I run the previous command:

perl -MXML::Simple -e" XML::Simple->new->XMLin(shift)" podtech.rss
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... I get a repeating sequence as I described before. Clearly I have something out of date or some odd combination of things installed but I am not clear on how to go about figuring this out. Any other ideas?