WASHINGTON (Reuters) - The economy may not see a strong pick-up in growth in the second half of 2011 as the number of Americans filing for first-time jobless benefits remained high last week and retail sales barely rose in June. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=Q8ga1mTbaKM:6YSXOso2pt8:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=Q8ga1mTbaKM:6YSXOso2pt8:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/Q8ga1mTbaKM)