NEW YORK: A police officer holds a Long Range Acoustic Device, or sound cannon, as police block protestors on a march through Times Square during a protest Tuesday against a grand jury's decision not to indict Ferguson police officer Darren Wilson in the shooting of Michael Brown. The grand jury's decision has inflamed racial tensions across the U.S.

ATLANTA: Protesters block all lanes of Interstate 75/85 northbound near the Georgia state capitol building one day after the Ferguson grand jury's decision not to indict police officer Darren Wilson in the shooting of Michael Brown.

WASHINGTON: Protesters march through stopped traffic on New York Avenue on Tuesday.

PHILADELPHIA: Protesters demonstrate outside a police station on the day after the announcement that a grand jury decided not to indict Darren Wilson in the fatal shooting of Michael Brown.

MIAMI: Demonstrators rally in front of the Richard E. Gerstein Justice Building on Tuesday as they protest Monday's announcement that a grand jury decided not to indict Ferguson, Mo., police officer Darren Wilson in the shooting death of Michael Brown.

MINNEAPOLIS: University of Minnesota students rally in support of victims of police brutality. Two rallies Tuesday in Minneapolis to demonstrate against the grand jury's decision in Ferguson, Missouri, drew several hundred people who showed solidarity with Michael Brown, the black teenager who was shot and killed by Ferguson police officer Darren Wilson in August.

NEWARK: Cliff Rogers marches Tuesday during a rally in response to a grand jury deciding not to indict Ferguson, Mo., police Officer Darren Wilson.

COLORADO SPRINGS: Gus Griffin raises his hands during a "hands up, don't shoot" chant Tuesday during a protest march against the grand jury decision in Ferguson, Mo.