Today---we are going to spend a lot of time on the climate. No, not THAT climate...not the weather. But the political climate in this country---and the extraordinary events still unfolding. Someone---maybe more than just someone---sending crude explosive devices to the homes of two former Presidents of the United States....to a US Congresswoman.....to the offices in New York of CNN....to a former US Attorney General. What ALL share in common---all are or are perceived to be critics of the Trump administration. We will go In Depth on the hunt for who did this...as the nation waits to learn whether today's attempted attacks are the end or just the beginning.

Later on, NBC host Megyn Kelly argues that blackface costumes for Halloween maybe shouldn't be considered racist; and quickly faces broad condemnation. We will go In Depth on that controversy.