Another book that I am reading is by Mike Wingfield "Living in a World With No Conscience: Has America Reached the Point of no Return?"
This too has been an eye opener from a slightly different direction than Michael Youseff's book. It goes further into the realm of Spiritual things happening in America and by extension the world.
He's very point blank about Spiritual matters in a Christian's life.
I also highly recommend this book as well.