Investors React to Trump's North Korea Threats

This is what you need to know on Friday: 

1. European stocks tumble and Asia shares test two-month lows as investors react to Trump's threats against North Korea.

2. President Trump says North Korea has 'disrespected our country greatly', adding his 'fire & fury' warning 'wasn't tough enough'.

3. The CBOE volatility index extends advance after Thursday's spike while the 'Fear Gauge' is now at its highest point since the November election.

4. The Japanese yen rises to a two-month high against the U.S. dollar overnight as safe-haven flows dominate trading.

5. Snap (SNAP) - Get Report expected to open sharply lower Friday despite founders' vow to hold shares after poor Q2 earnings.

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