Per this account of Mannie Garcia, an experienced professional free-lance photographer, Montgomery County, Maryland police roughed him up, stole his camera's digital card, brought false charges against him, and lied against him court - just for trying to photograph their suspicious activity on the street. http://www.wusa9.com/news/article/185650/77/Mannie-Garcia-Of-Kensington-Md-Claims-He-Was-Roughed-Up-By-Montgomery-County-Police
It is clear that this a nation-wide phenomenon. In far too many places, police act in contempt of the Constitution, of the truth, and of basic concepts of justice. There needs to be accountability.
What may be most disturbing about Mr. Garcia's account is his description of a continuing pattern of harassment and intimidation by Montgomery County police, after he complained against them. This is rank police lawlessness. It is incompatible with life in a free society. This should not be happening in America.