An EgyptAir plane was hijacked overnight. The hijacker claimed to be wearing an explosive vest and demanded the plane be diverted to Cyprus. Reports from Egyptian media indicate this was not a terrorist attack but rather stemmed from a private matter, possible due to the man's ex-wife who lives in Cyprus. 4 foreign nationals and the crew were said to still be on the plane. Federal Reserve Chairwoman Janet Yellen speaks today in a much anticipated midday appearance before the Economic Club of New York. The big question on Wall Street is if she will echo hawkish comments made recently from other Fed officials. The FBI has dropped its case against Apple (AAPL) - Get Report . The government says a third party has successfully broke into an iPhone used by one of the San Bernardino killers after Apple refused to assist the FBI in its investigation due to privacy worries. Consumer confidence is released today. The Case-Shiller home price index is reported. The Congressional Budget Office releases its analysis of President Obama's 2017 budget proposal.