Cable companies, advertising firms, and newspapers are asking courts to block a federal "click-to-cancel" rule that would force businesses to make it easier for consumers to cancel services. Lawsuits were filed yesterday, about a week after the Federal Trade Commission approved a rule that "requires sellers to provide consumers with simple cancellation mechanisms to immediately halt all recurring charges." Cable lobby group NCTA-The Internet & Television Association and the Interactive Advertising Bureau trade group sued the FTC in the conservative US Court of Appeals for the 5th Circuit.