More on the Singapore ivory and a secret resignations??

The first big test of Wasser's system took place in the port of Singapore in 2005. Acting on a tip, customs agents opened a set of shipping crates and found a stunningly large cache of stolen ivory.
"Six and a half tons of ivory," Wasser says. "It was the largest seizure since the ban and actually the largest ever in history."
Wasser says it is possible that 6,000 elephants were killed to fill the seized crates. But smuggling experts couldn't [track] down the site of the mass slaughter. The crates had come from Zambia but Zambian officials swore that poaching was extremely rare inside their borders. They claimed that only 135 elephants had been killed in their borders in the last 10 years, Wasser says.
Wasser traced the DNA fingerprints of those tusks and proved the Zambian officials wrong.
"We can actually pinpoint based on the combinations of genes falling together," Wasser says, "where the ivory came from, and that turned out to be Zambia."
The chief of the Zambian wildlife department was so embarrassed by Wasser's findings that he quit his job. Wasser's work has not yet led to arrests, but there are signs that it is forcing some big changes.
Several countries are now getting tough on ivory poachers, says a co-author of the paper, smuggling expert William Clark of Interpol. One of the most recent busts took place in Zambia, where an Asian businessman was caught buying tusks.
"He pleaded guilty and he was sentenced to five years hard labor," Clark says. "That's a serious punishment for someone from an industrialized Asian country — going to a Zambian prison."