As Google grapples with the backlash over the historically inaccurate responses on its Gemini chatbot, Meta Platforms is dealing with a related issue. As part of its work on the forthcoming version of its large language model, Llama 3, Meta is trying to overcome a problem perceived in Llama 2: Its answers to anything at all contentious aren’t helpful.Safeguards added to Llama 2, which Meta released last July and which powers the artificial intelligence assistant in its apps, prevent the LLM from...