Regulators are extending the comment period on a controversial proposal to ease restrictions on cursing and “nonsexual nudity” over public airwaves. The action drew fire Monday from opponents of the idea, who have called upon the Federal Communications Commission (FCC) to scrap the plan and salvage the final vestiges of family-friendly broadcasting. Back in April, the FCC put out a call for feedback on a plan to focus on the most egregious cases of indecency. If adopted, the less stringent regulations would reflect a shift from George W. Bush-era policies of pursuing penalties for isolated infractions on broadcast television. The...