redletterdave writes: Facebook chief operating officer Sheryl Sandberg said the company’s massive secret experiment designed to purposefully manipulate the emotions of its users was communicated 'poorly.' Sandberg's public comments, which were the first from any Facebook executive following the discovery of the one-week psychological study, were made while attending a meeting with small businesses in India that advertise on Facebook. 'This was part of ongoing research companies do to test different products, and that was what it was,” Sandberg said. 'It was poorly communicated. And for that communication we apologize. We never meant to upset you.'