@snood,
LOL sorry but if someone told me that he or she had work in the field of electronic engineering for 30 years and does no know ohm law he or she is lying, if someone would tell me that he or she is a mathematician for the last 30 years but could not define a second order second degree differential equation he or she is not a mathematician and is lying.
If someone does not know one of the most famous events in cryptanalysis history that ended up costing the life of a queen and changing history he or she is not anywhere near the field of cryptanalysis.
As far as police brutality the case given was found by a jury not to be police brutality and under our system that is the end of it.
In fact we just had one cop killed on her first day back on the job and two placed into intensive care by a black gentleman who also had killed his wife and somehow I just know someone will be complaining about police brutality. Those damn cops must had been racists.