I think it should be common knowledge that the governmet will keep what information they find out about anyone indefinitely no matter how small or unimportant. Unless you want them to recognise you and they'll say "we can't find anything on you - are you sure you born? oh wait it says you dead. So when did you die sir?
It should be pretty clear that the government is willing to break any law written if it suits their interest.
here's a short list:
the gulf of tonkin incident which got the US in the viet nam war---oops never happened - lie
watergate break in - cover up/ slush fund - president lied to the public and congress. obstruction of justice - a felony committed by Nixon
The killing of unarmed students in Ohio by the national guard - murder
The Tuskegee syphilis testing - black men infected with syphilis on purpose and not informed of being infected - the effects of long term a syphilis infections were well known at this time so exactly why did they do it

This lead to health damage of these men for nothing.
CIA giving large doses of LSD to our top scientist working on the highest top secret programs just to see if they would spill their secrets...until one of them jumped out a building high on CIA LSD - oops - negligent homicide [ oh no one ever told any secrets - they were too high to talk coherently]
Bombing Cambodia during the Viet Nam war- except for we never declared war on Cambodia - more needless death by deception
Supplying weapons and training to the contras against congress's orders.
Oliver North a colonel attached to the whitehouse illegally shredding untold pages of government classified documents to cover his ass - High Treason. He should have got 20 years in Leavenworth.
WMD - remember that little bitty lie that got in us into the Iraq war. they never had them and we never found any except for items destroyed in the first gulf war in 1991, read that as not usuable to make WMD. We told the UN that Iraq was acquiring Yellow Cake [ a radioactive precomponet of a WMD] Oops - never happened - more lies
Wire tapping American citizens phones without a judge's authorization - obstruction of justice
Attorney general Alberto Gonzalas can't seem to remember a damn thing even after his written words are presented to congress. Says he knows nothing about firing government lawyers for being in the wrong polictal party except for the documents of his own words said he did. Obstruction of justice by the highest ranking justice officer in the country
outing of a covert CIA agent for politcal retribution by the office of the vice president - High treason - Um people get the death sentence for stuff like this
Ultra secret american death squad hidden from congress for years on Dick Chenney orders - lies
this list can on and on...this is just the stuf we know about. What about the stuff that has yet to be discovered.....