via: cnn.com NEW YORK (CNNMoney) — They may as well call it Black Thursday. Joining a slew of other national retailers, Wal-Mart said it too will open its doors nationwide on Thanksgiving night. Not to be one-upped by Target (TGT, Fortune 500), which recently announced it would open at midnight on Black Friday, Wal-Mart (WMT, Fortune 500) said […]