Occupy protests heat up nationally

OAKLAND, CA (NBC) - As the thick smoke of tear gas fills the night sky in Oakland, CA, it's clear the tempers and tension surrounding the national "Occupy" movement are growing.

After a series of arrests over the last two days in Oakland, Atlanta and Albuquerque, police say the issue isn't freedom of speech.

"The decision to move was based on public health and safety due to defecation, fire hazards, sexual assault incidents, violent behavior and denial of access to medical aid," said interim Oakland Police Chief Howard Jordan.

Many of the protesters say seeing dozens taken away in shackles only serves to renew their dedication to the movement.

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