ROME (Reuters) - Italy's antitrust watchdog said on Friday it had opened a probe into whether messaging service WhatsApp obliged users to agree to sharing personal data with its parent company Facebook and imposed "unfair" conditions on users.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=DTodQ2aQcLM:gSoBzmz_BnA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=DTodQ2aQcLM:gSoBzmz_BnA:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=DTodQ2aQcLM:gSoBzmz_BnA:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=DTodQ2aQcLM:gSoBzmz_BnA:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=DTodQ2aQcLM:gSoBzmz_BnA:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/DTodQ2aQcLM" height="1" width="1" alt="" />