Recently, the Writers Guild of America (WGA), which represents TV and film screenwriters, called for a strike, and most screenwriters stopped working. Nevertheless, writers for certain TV soap operas, such as The Young and Restless-which have had shrinking audiences for years, draw small numbers of viewers for repeat shows, and rarely sell on Blu-ray discs-opted to drop their WGA memberships and tried to continue working during the strike. Why do you suppose that the WGA posted on its Web site a phone number for union members to report "strikebreaking activities and 'scab writing'" to the union's 12-person Strike Rules Compliance Committee? What effect do strikebreakers have on the collective bargaining power of a union?