Issues such as trust and human relations become harder to handle as companies intrude into the lives of their employees.

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"This was not the first nor will it be the last illegal attempt to intrude into our systems, " said Khalid al-Falih, president and chief executive of Saudi Aramco.

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Politics, he said, should not intrude into university life.

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This is part of a wider debate on the blurring demarcation line between public and private responsibilities and how far a legal right for citizens to get access to information can intrude into the private sector.

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"Germany, in effect, has invited this court to create a new international legal obligation, one that would necessarily intrude deep into the domestic criminal justice system of any state, " Thessin said.

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The downside is that health plans could intrude too much into medical decisions.

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He says employees under interrogation can say the questions are irrelevant to the way they are performing and intrude too much into their private life.

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Kennedy took the due-process argument to heart, rooting his analysis in the right to a zone of personal liberty into which the government may not intrude.

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Hopes will run high this spirit can continue into meaningful entitlement reform but the impending 2014 elections will intrude and the rancor will return.

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