NEW : UNASUR backs Britain and calls for dialogue to resolve the standoff . Julian Assange demanded that the United States drop its `` witch hunt '' against WikiLeaks on Sunday as he made his first public appearance after months effectively confined to the Embassy of Ecuador in London . ` Julian Assange links Julian Assange to freedom of expression around the world . The founder of WikiLeaks had n't been seen since March , or spoken in public since June . Ecuador 's president says Ecuador threatened to raid the embassy to arrest Assange .
NEW : UNASUR backs Britain and calls for dialogue to resolve the standoff . Julian Assange links Julian Assange to freedom of expression around the world . The founder of WikiLeaks had n't been seen since March , or spoken in public since June . Ecuador 's president says Ecuador threatened to raid the embassy to arrest Assange .