Cigna defended its sale to Anthem in a court filing this week, saying it would benefit consumers by giving them greater access to affordable health care. The filing comes two months after the U.S. Justice Department sued to block the $54 billion deal. Bloomfield-based Cigna complained, as Anthem did in July, that government attorneys used misleading quotes out of context from internal documents, and said it agreed with Anthem's view that the $48 billion deal would give consumers greater access to affordable health care.