sentences:  Some are concerned that individual intelligence agencies will create their own wikis, draining ideas and input from Intellipedia.Sean Dennehy, a CIA official involved in integrating the system into the intelligence fabric, said disseminating material to the widest possible audience of analysts is key to avoiding mistakes.He said analysts from multiple agencies had used the network to post frequent updates on recent events, including the crash of a small plane into a New York City apartment building in October 2006 and North Korea's test of a missile in July 2006.