Entry to the VAST challenge "mini challenge 3" in which questions about the mutation of a disease had to be answered using visual analytics. This video demonstrates a rapidly-built tools that facilitates this.
Details of the challenge: http://www.cs.umd.edu/hcil/VASTchallenge2010/
Data and other entries from this year are at: http://hcil.cs.umd.edu/localphp/hcil/vast/archive/task.php?ts_id=150
The annual VAST (Visual Analytics in Science and Technology) challenge provides a large simulated but realistic dataset (usually relating to issues of national security) and challenges participants to interpret the data using visual analytics.