Advertisers :( cannot use new Facebook 'reactions' to target viewers

By Yasmeen Abutaleb and Jessica Toonkel WASHINGTON/NEW YORK (Reuters) - Facebook Inc advertisers love the idea of using the social network's new anger, humor and other emoticon buttons to better target audiences, but they are :( that the company is not letting them do so right away. The network, with 1.6 billion users, on Wednesday rolled out its new "Reactions" button, which expands the range of emotional responses far beyond the "thumbs up" known as "like." Facial expressions tagged "love," "h