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Req  3.4:  Users shall have the option to cache query search
	   results to avoid redundant service calls.
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This is demonstrated by using the REGDB task to retrieve record
information from the local registry cache.


http://skyview.gsfc.nasa.gov/cgi-bin/vo/sia.pl?survey=dss2&
http://skyview.gsfc.nasa.gov/cgi-bin/vo/sia.pl?survey=nvss&
http://heasarc.gsfc.nasa.gov/cgi-bin/vo/cone/coneGet.pl?table=nvss&