The taxes that Britain imposed on the colonists angered the colonists because some colonists couldn't afford to pay those taxes, and most of the things that Britain put taxes upon were important, fundamental things that people usually buy, like glass, oil, paint, lead, paper, ink, sugar, and tea.
I'm not exactly sure what the question is supposed to be here, but if it's asking WHO did these experiments, the answer is Josef Mengele.
According to Walter Cronkite the tet offensive was a stalemate and neither sides win the battle but it changes his view after he went to Vietnam and sees what is happening to the US soldiers fighting a war that both sides neither wins. Even though he is silent strong supporter of US involvement in the war but after seeing firsthand it changes his point of view of US involvement in war and rather than victors it is better to negotiate as the people who pledge to protect democracy in the war.
