Most of the world considers capital punishment in any form to be deplorable: OHCHR | Death Penalty. In the few industrialized countries that continue to practice capital punishment (Death Penalty), cyanide poisoning is considered inhumane. read more
Suppose we take a look at why it doesn't work. The average person who ends up on Death Row can look forward to about 14 years of appeals, that may end up with new trials; leniency appeals from family members; demands from political and civic organizations to commute the sentence; and even Hollywood types on picket lines to pressure prison officials and government leaders to show mercy. read more
Cyanide had been used by a number of states for many years and there are two issues with it: 1) it's relatively quick, but agonizing and many felt that it violated the "cruel and unusual punishment" restriction, 2) cyanide is very toxic and poses a threat to the health of anyone that handles it and the environment. read more