They should not take the stance that any particular bits(such as headers, routing info, identity of sender receiver, etc.) are "public" or less deserving of privacy protection, without a very strong reason
However there are those who (appear to) believe that "An honest citizen has nothing to fear, thus they require no privacy from the state etc", however these same self appointed people also believe (with little doubt) that they should be total exempt from any kind of examination from the "honest citizen". Further that any citizen calling this beliefs into question must automaticaly be dishonest to the point of being a "terrorist" and thus have the full force of the state brought to bear against them.
Sadly these people also appear to be either the legislators or those that control the legislators in some way. In either case they appear to have little respect for the wishes of the majority of citizens.
One of their tactics is to deny those with legitimate enquiries the information by which the knowledge required to judge their claims and actions may be acquired, and this is exactly what we see in this case which is what has caused the ire of the judge concerned.
Historicaly we have seen this behaviour befor with the likes of the "Holy Roman Church/Empire" suppressing knowledge and further using falsehoods to suppress those who defy the "church writ" (see history of anabaptists in Germany in the 1500's for example) and likewise those that are close to them in what is a "tyranny of fear".
The one thing history has taught us in this respect is information, and the knowledge that comes from it cannot be kept locked up and the process of it's release is often unpleasent to the extream in an often lengthy process involving much violence by those in power and often retribution by those that depose them.
The founding fathers recognised this issue which is why they tried to ensure a compleate seperation of religion and state, that is religion should have no part in the governing of the people, and that the people should control both the legislature and executive branches of government (in effect the ultimate form of socialism by self determination). Thus you have the seperation of the earthly domain of Ceaser (the state) and the spiritual domain of faith (religion).
Unfortunatly what the founding fathers did not realise to the same extent was the "evil of the accumulation of wealth" and how base financial self interest would "buy" the hard won freedoms cheaply from the people via those they chose to represent them. Thus the subversion of legitimate authority of the state by those with the ability to buy it corruptly from those invested by the people with the power of the state as their chosen representatives.
It's been said that the recent battle for the Presidency of the US has cost well in excess of six billion US dollars directly and considerably more indirectly. How many US citizens do you think have actualy stoped and thought about where that money came from and what those who payed it into campaign funds etc expect in return for their "investment"?
I think that it's a reasonable bet they are looking for a lot more than "ten cents on the dollar", in fact I would guess they are looking for atleast a tenfold return over the four year period as an absolut minimum. And that sort of money can only come from the majority of US citizens that have no choice over what taxes they pay.
But how to ensure the citizens "render unto Ceaser what is Ceasers", well by legislation, suppression and misdirection, where the citizens are in effect subjugated into "Ceaser's domain" without choice in return for the faux illusion of "freedom of choice" that representational democracy offers.
The clue that this system actually lacks freedom of choice is that there is not the choice to say "none of the above" on the ballot and have it count. That is there is no freedom to replace representational democracy or freedom to an alternative other than the choice of representatives given. Hence the resulting "chimps tea party" that arises from selecting a "monkey in a suit" to supposadly represent your interests. But in reality the chimp is a pupet over whom you actually have no control, their real aligence is bought and payed for by others. The chimps in turn ensure their position by the use of their patronage of "appointies" and largesse of "appropriations" from the tax take, back to the puppet masters, who direct a fractional percentage back for "campaign funds".
Thus Ceaser is these days the power behind the throne, hidden in the shadows cast by the spotlights of the circus of representational politics. As such they ensure their protection from the law not by corrupting the LEA's but by purchasing the legislation they want which the LEA's enforce. They leave the coruption of the LEA's to the "political process" of patronage, that is those who desire to benifit from a seat at the top table at the chimps tea party have to be offered a seat by those already sitting there. Thus they know that not only must they offer no threat to those seated at the top table and those in the shadows who control them, but they must also actively provide benifit to them in some way.
Thus as an indipendant judiciary can be seen to be a risk the judiciary must likewise be controled in the main by patronage hence the selection of judges in the upper tiers of the system are in practice political appointees who have likwise reached the positions they have by not being a real threat to those above them.
However it is a circus and the people have to be entertained as part of the spectical thus part of the game is those on the rise appearing to take a stand against those above, but their targets are not those in the shadows just those who's aspirations are not aligned with those in the shadows.
Think of it this way we condem the behaviour of the banks for the economic recession we are in, and thus attacking those in the banking industry is currently the entertainment on offer. However have you asked yourself where the banks get the money they play with? That is who controls the supply of the money they borrow to lend to others?
The myth is it's savers, the reality is it's wealthy investors the majority of whom you and I have not heard of nore are ever likely to. This is because they invest through a veil of financial institutions and offshore funds. However some we do know of such as those in the House of Saud, and other nouveau riche such as Russian oligarchs and it was said that in the financial crisis that arose in 2008 the only financial liquidity in the system was from them and the drugs cartels laudering their money... However it is the "old money" not the "new money" where the real power lies and they have spent many years being careful to stay not just out of the limelight but very firmly in the shadows and well away from the "top 100 richest" lists.
If you look at who some of the bigest campaign fund contributers are you will find that they appear to be Investment Bankers, but you have to ask who actually supplied the money to them to contribute...
We can make guesses based on the legislation that gets selected and promoted or blocked, thus we can surmise that some comes from tobacco and alcohol interests, some from raw energy suppliers such as fossile fuels production, some from mining and other raw resource controllers including the chemical and food related industries as well as the always profitable defence industries and the likes of insurance organisations that invest in them.
And if we cross check these organisations against the lobbying and think tank organisations with the most difficult to find sponsors and those organisations alleged to have significant environmental impact and foreign human rights abuses we see interesting patterns emerge, not least that they pay little or no tax anywhere but in some cases actually receive significant incentives from taxation at home and abroad through "foreign aid budgets" and "overseas development funds". And in some cases where investigations for bribery, kickbacks and similar have started they get stoped due to "national interest" (this has been seen quite openly in the UK with a Serious Fraud Office investigation into the defence industry and Saudi contracts aranged through intermediaries getting stopped).