Lisa Randall (2005), Warped Passages: Unraveling the Mysteries of the Universe's Hidden Dimensions (New York: Harper Collins: 0060531088). Highly recommended. Theory is really ahead of measurement in modern particle physics. There is the sense of thousands of people around the globe holding their breath as they wait for the Large Hadron Collider to come on line, all of them hoping to see a lot of new physics in the 250-1000 GeV range...

Just think of what we would know if since 1970s we had diverted NASA's manned space flight budget into building bigger and bigger atom smashers...