Family members of Samsung Group plan to sell nearly 2.8 trillion won ($2.12 billion) worth of their shares in Samsung Electronics and other affiliates in a block deal in an apparent bid to pay inheritance taxes, industry sources said Wednesday. Hong Ra-hee, the mother of Samsung Electronics Co. Chairman Lee Jae-yong, and her two daughters -- Hotel Shilla Co. CEO Lee Boo-jin and Lee Seo-hyun, chief of the Samsung Welf...