$1.$ What security measures does Eskom plan to implement to prevent future acts of sabotage at its power stations? $($Reason: This question explores the practical steps Eskom is taking to address the issue and ensures readers understand the company's response to the situation.$)2.$ How does the recent sabotage incidents impact South Africa's energy security and economic stability? $($Reason: This question delves into the broader implications of the sabotage on a national level, providing context for readers about the significance of the events.$)3.$ Are there any suspects or leads in the investigation into the sabotage at LethaboPower Station? $($Reason: This question addresses the legal and investigative aspect of the incidents, keeping readers informed about pot