You can sign an online petition to the government of Ecuadorian president Rafael Correa in support of Julian Assange's extradition request.
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To:
Rafael Vicente Correa Delgado
President of the Republic of Ecuador
Ricardo Armando Patiño Aroca
Minister of Foreign Relations, Republic of Ecuador
CC:
Raúl Gangotena
Ambassador of the Republic of Ecuador in Australia
Luis Felipe Valencia
Consul General of the Republic of Ecuador in Australia