"Irises are very good for recognition but you can put in dilation drops which change the iris completely. No technique is infallible, " he said.

瞳仁认证虽然不错，但滴入扩瞳药水就可以轻易地改变瞳仁大小。所以说没有什么技术是绝对可靠的。

youdao

Lutnick won: Iris Cantor would get a lot of money but have no voice in running the firm.

FORBES: Getting between the wall and the wallpaper