Whom do you trust? In a soci­ety, less trust = more laws. Sig­nals of trust change between cul­tures, and even social class. In some coun­tries pub­lic trust is almost zero. Also, can a “Face­book friend” or a face from TV be real­ly trust­ed? An Inter­net romance? For some, reli­gion sig­nals trust­wor­thi­ness. What is your solu­tion for build­ing trust in a com­pli­cat­ed world?