UPDATE 3-Russia warns British media after RT fined for coverage of poisoned spy <!-- no image --> <div>* Britain says vigilance needed on disinformation (Adds line from the British government)<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=ZA7WX58UBCw:LX3oepv9TME:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=ZA7WX58UBCw:LX3oepv9TME:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=ZA7WX58UBCw:LX3oepv9TME:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=ZA7WX58UBCw:LX3oepv9TME:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=ZA7WX58UBCw:LX3oepv9TME:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/ZA7WX58UBCw" height="1" width="1" alt=""></div> Posted by Reuters