4. The method of claim 1 wherein the source information comprises a plurality of sources, and a source of the plurality of sources is not used if a reliability rating of the source is below a threshold.
4. The method of claim 1 wherein the source information comprises a plurality of sources, and a source of the plurality of sources is not used if a reliability rating of the source is below a threshold. 7. The method of claim 4 wherein each source of the plurality of sources is rated based on previous fact checking results.