If one gets a chance to visit Cambodia and Angkor Wat.... I suggest at trip to Phnom Penh and go see the "killing fields" , Choeung Ek, and the museum in the city{Tuol Sleng(S21). Very sobering . Pol Pot and the Khmer Rouge massacred between 1.5 - 3 million people, about 25% of the population. Pol Pot and the Khmer Rouge were supported for many years by the Chinese Communist Party, led by Mao Zedong; it is estimated that at least 90% of the foreign aid which the Khmer Rouge received came from China, including at least US $1 billion in interest-free economic and military aid in 1975 in an attempt to turn Cambodia into a socialist republic. That was only 45 years ago.

Also went to Dachau concentration camp outside Munich. Did it on a layover and then took family. It's important to learn that throughout history...man's inhumanity to man never ceases. Sometimes, somebody needs to step in. If not the UN ...then who? "I don't know man, it's not our job"?

With all the atrocities, does one think it's prudent to let Iran get nukes? It's usually easier to stop something before it grows and metastasizes..