One of the main reasons that the Three Gorges dam was built was to prevent flooding further downstream. The need for a dam was highlighted in 1954 when people were killed as a result of flooding of the Yangtze River.
Arab Spring refers to the democratic uprisings that arose independently and spread across the Arab world in 2011. The movement originated in Tunisia in December 2010 and quickly took hold in Egypt, Libya, Syria, Yemen, Bahrain, Saudi Arabia, and Jordan.
This is how we introduced our 2011 story. We speculated that many wonderful things would be known in 2012... but then the so-called Arab Spring happened, rearranging the political structure in Egypt and confusing the status of the caves, Dr. Hawass and everything else to do with the pyramids. A Report by Richard Gabriel.