This is CNBC's Morning Squawk newsletter. Subscribe here to receive future editions in your inbox. Here are five key things investors need to know to start the trading day: Yesterday highlighted the relevance of a market adage: Bad news can actually be good news for investors. After private payroll data showed weakness in the labor market, stocks climbed as investors hoped the report would strengthen the case for an interest rate cut at the Federal Reserve's meeting next week. Here's what to