Note also that the newspaper Lá is almost never put in the genitive. Is it possible that the reason Lá would not be put in the genitive is because it's a proper noun and starts with a non-lenitable consonant? That is, are proper nouns like the names of newspapers, the Post Office, etc., handled like other proper nouns, e.g., person's names? I know there's no such thing as a dumb question, but maybe mine above comes pretty close.