Apple Expected to Unveil New iOS; Stocks React to London Terror

Apple (AAPL) - Get Report CEO Tim Cook is scheduled to take the stage at Apple's WWDC today. Cook is expected to unveil a slew of new improvements to iOS, Mac, Watch and Apple TV, as well as upgrades of Apple's apps like iMessage and photos. Apple is also expected to hear about much needed improvements to Siri, which lags behind Google (GOOGL) - Get Report Assistant and Amazon's (AMZN) - Get Report Alexa.

London is the scene of another terror attack. It's the third one in the city in a month. Seven people were killed Saturday and 48 injured when a van of knife wielding terrorists ran over people on the London Bridge. Police have arrested 12 people. British Prime Minister Theresa May called on Silicon Valley to do more about extremist content on social networks. A handful of Arab countries have cut ties with Qatar. Saudi Arabia, Egypt, The United Arab Emirates and Bahrain are among those who say Qatar backs militant groups including ISIS and Al-Qaeda.