article_snippet: Migrants arriving on visas must declare Migrants arriving on visas will respect British values .
article_snippet: Mrs May said the aim was to ensure 'nobody unwittingly lends legitimacy or credibility to extremists' and ensure ministers don't just speak to 'self-appointed and often unrepresentative community leaders'.
article_snippet: Tory MPs welcomed her uncompromising stance in which her criticised those who sought to excuse Islamist extremism as mere 'social conservatism'.
article_snippet: The speech was seen at Westminster as a reminder of Mrs May's leadership credentials if David Cameron stands down after the election.
article_snippet: MPs said David Cameron stands down after the election had echoes of Margaret Thatcher, who once declared: 'Where there is discord, may we bring harmony.'
article_snippet: Shadow home secretary Yvette Cooper said: 'Everyone other than the extremists agrees we should robustly defend and actively promote the pluralistic values our society rightly holds in esteem.
article_snippet: But it isn't enough for the Home Secretary to say it, Shadow home secretary Yvette Cooper needs to act.'
article_snippet: The Home Office also includes 'calls for the death of members of armed forces whether in this country or overseas'.