Remark for Interview 2014. 1. 

After this inteview was finished (i.e., the corresponding paper was also published),
the following infromation was pointed out by R. Fenn. 
The (1, 2) homotopy classes were determined by M. Khovanov via different viewpoints.
This result is similar to a result Fenn and Taylor.   
I first noticed the two results via personal communication with Fenn on March 2014.
For the detail, please see "Addendum (1, 2) and weak (1, 3) homotopies on knot projections", J. Knot Theory Ramifications, September 2014. 

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