and if we are talking about governments and such a honest worry about "abusing", another problem is hipocracy: take a look of that list. These are countries that committed executions in 2004th:
USA, North Korea, Iraq, Iran, Saudi Arabia, Jordan, Yemen, Cuba, Egypt, Pakistan, Vietnam, China, Sudan, Uganda, Botswana, Somalia, Chad, DR Congo, Zambia, Zimbabwe, Kazakhstan, Uzbekistan, Belarus - and only other country that can be called civilized and democratic - Japan. Out of 203 countries in the world.
http://www.amnesty.org/resources/report04/stats-eng/