David Wilkerson was the man who wrote the book the Cross and the Switchblade he helped work with Gangs In New York in the 70s he also had a vision from God in the 70s you can read all about his vision in his book The Vision some of the points he highlighted was this:

In 1973, Wilkerson claimed to have received a vision regarding the future of the United States and subsequently gave a sermon on the vision and published a book called The Vision. Wilkerson believed that God had revealed to him a great calamity which was going to befall America due to increase in sins such as homosexuality, sexual promiscuity, and greed.

Some of the details of this 1973 vision were:
"Worldwide recession caused by economic confusion"
"At most a few more fat flourishing years, and then an economic recesion that's going to affect the life style of every wage-earner in the world. The world economists are going to be at loss to explain what's happening. It's going to start in Europe, spread to Japan and finally to the United States."
There will be a move toward a worldwide, unified monetary system. The US dollar will be hit bad and it will take years for it to recover.
The only real security will be in real estate (until a somewhat later stage, at which point this apparent security will also disappear).
"Nature having labor pains"
Environmentalists will come under heavy criticism.
There will be major earthquakes.
There will be a major famine.
Floods, hurricanes and tornadoes will increase in frequency.
"A new kind of cosmic storm appearing as a raging fire in the sky leaving a kind of vapor trail."[2]
"A flood of filth and a baptism of dirt in America"
Topless women will appear on television, followed by full nudity.
Adult, X rated movies will be shown on cable television. Young people will gather at homes to watch this kind of material in groups.
Sex and the occult will be mixed.
There will be an acceptance of homosexuality, and the church will even say that it is a God-given gift.
"Rebellion in the home"
"I see the new number one youth problem in America and the world as hatred towards parents."[2]
"A persecution madness against truly Spirit filled Christians who love Jesus Christ"
There will arise a world church consisting of a union between liberal ecumenical Protestants and the Roman Catholic Church, using Christ in name only.
There will be a hate Christ movement.
There will be a spiritual awakening behind the Iron and Bamboo Curtains.
Others
There will be another wave of riots.
There will be a fall in moral conduct.
There will be a new drug that will be popular with teenagers that will break down resistance and will encourage sexual activity.
Homosexual and lesbian ministers will be ordained and this will be heralded as a new breed of pioneer.
There will be nude dancing in church, but this will never be widespread.
There will be occult practices in churches.

Since then, Wilkerson has continued to produce prophetic books, all predicting economic disasters, food shortages, rising crime, and ultimately, destruction for the United States. He urged his followers to store food, water, and medicine for a coming disaster in the late 1990s in a book entitled God's Plan to Protect His People in the Coming Depression. Wilkerson has faced increasing criticism from many sources, many of whom voice concern that the threats of upcoming disasters have led many of Wilkerson's followers to take preemptive action that they later regretted. His most serious utterances are reserved for the dire state of the Church, in particular, the church in Western nations. He predicts that the Church in Asia and Africa will flourish greatly, but under severe, if not dire circumstances. Other material that he has written is very critical of the so called "Faith movement" in which he identifies many doctrinal errors, some serious enough to place the practitioners in a very serious position with God. He identifies many of the problems that genuine Christians have as a direct result of exposure to these types of movement.

I think its really interesting to see the current situation of the world and how a lot of this vision has now come to pass or is starting to come to pass. All them years ago its really interesting to see with whats happening now.