Taiwan elects its first female president; China warns of 'grave challenges' "U.S., Chinese navy chiefs to discuss South China Sea on Thursday" i2.cdn.turner.com/cnnnext/dam/assets/160116153820-taiwan-election-6-medium-plus-169.jpg Democratic Progressive Party presidential candidate Tsai Ing-wen casts her ballot. More on FC: http://investorshub.advfn.com/boards/read_msg.aspx?message_id=119896735