An underground animal rights group is threatening to spread rat poison in Toronto's Chinatown and poison food at Mandarin buffet restaurants, the head of the Toronto Chinese Business Association told The Huffington Post Thursday.

Barbara Chiu, the group's executive director, said she received a letter in the mail Tuesday from an organization calling itself Animal Liberation Canada/USA upset with the group's decision to fight a city of Toronto ban on the sale of shark fins.
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Animal Liberation Canada/USA may be aligned with the Animal Liberation Front (ALF) a leaderless group known of its violent and criminal actions.

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full story:
http://www.huffingtonpost.ca/2011/12/01/shark-fin-soup-ban-toronto_n_1123797.html?ref=canada-politics