What do they have in common, other than a little alliteration?
They're quite unpopular with the American public, according to the latest PPP poll (since we're alluding to alliteration!):
Business Insider reports that people preferred cockroaches to the 2012 Congress. They also preferred "root canals, the NFL replacement referees, lice, Nickelback, colonoscopies, political pundits, carnies, traffic jams, ... France, Genghis Khan, used car salesmen, [and] Brussels sprouts... On the other hand, Congress won out over telemarketers and the Kardashians, again showing the good taste of the majority of us.
You can read more about this hilarious poll and the results in the press release from Public Policy Polling here.