US President Barack Obama and his rival Mitt Romney had their third and final TV debate on Monday. Each candidate tried to paint the other as an *untrustworthy commander in chief, and Obama described Romney as “all over the map”. His comment is in the same vein as “Romnesia”, a new line that Obama coined to attack his rival. Romney “is forgetting what his own positions are” and has changed attitudes toward many issues in the past year, due to a disease called “Romnesia”, said Obama on Oct 19.