BRUSSELS (Reuters) - European Union privacy watchdogs will let a new EU-U.S. commercial data pact underpinning billions of dollars of transatlantic trade run for at least a year without any legal challenge, they said on Tuesday.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=VVU6iK9sYRk:b0VU_o46n6g: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=VVU6iK9sYRk:b0VU_o46n6g:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=VVU6iK9sYRk:b0VU_o46n6g:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=VVU6iK9sYRk:b0VU_o46n6g:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=VVU6iK9sYRk:b0VU_o46n6g:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/VVU6iK9sYRk" height="1" width="1" alt="" />