This is not new.
WASHINGTON (AP) — The U.S. government agreed to a police request to restrict more than 37 square miles of airspace surrounding Ferguson, Missouri, for 12 days in August for safety, but audio recordings show that local authorities privately acknowledged the purpose was to keep away news helicopters during violent street protests.
Journalists were arrested at many, many protests. Even Amy Goodman was hauled away at the Occupy protests.
During the Boston Marathon siege by 10,000 National Guard and police the media was pushed back out of range of the action.
Back in 2000 I was at the Democratic National Convention protests, video taping at the same corner where LAPD blasted the crowd with shotgun rounds of some sort and rubber bullets. A journalist was shot in the chest with a rubber bullet and nearly died. ACLU later sued the city for millions, and my footage netted me a piece of the settlement for providing evidence.
The press was barred from getting near every flash point where the police state’s actions are in question. It is a way of erasing the Constitution, accountability, justice and morality in a small bit of territory while the police become enforcers of the corporatocracy, rather than law enforcers.