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Why is telecom immunity a bad thing? Because the telecoms very likely broke the law. The telecoms are in no danger of bankruptcy (see http://www.salon.com/opinion/greenwald/2007/10/27/litigation_costs/index.html), especially since they rake it in with government contracts (see http://www.eff.org/deeplinks/2008/06/spying-telecoms-receive-billions).
And because the lawsuits against the telecoms increase the chance that the Bush administration being held accountable for its lawbreaking. Because it could all come out in court. Which Bush has tried to avoid for a long time. At least since Specter sneaked in an amnesty provision for the administration, not the telecoms, way back in '06. (see http://glenngreenwald.blogspot.com/2006/06/specter-falsely-denied-proposing_15.html).
And a scape is a stalk.