Wikipedia, the Web's third-most-popular news and information source has started to protect and semi-protect some entries to guard agains vandalism. They had been considering it for a while and finaly decided to implement it after repeated attacks on many entries.
This is a sad thing but is understandable because of the current state of affairs in the world where there are so many differing opinions and views about every topic. One man's truth is another lie and many-a-times the facts go out the window.
So, Wikipedia which has been the, Open Source, openly editable encyclopedia had to protect some entries that vandals repeatedly targeted. We'll have to wait and see how tight the controls are going to be.
Read the NYTimes article about it here.