Subpoenaing Private Manning in this case is not unusual. He is involved in a criminal investigation.
I am not familiar with all of the other names on that short list. The ones I am familiar with are not US citizens. Non US citizens outside of the territory of the US do not have any of the same rights that US citizens have. (Non US citizens inside the territory of the United States have very many rights). Subpoenaing the records of non-US citizens that are currently not located inside of a US territory is not against any law I know of. IANAL, please someone that has more knowledge clarify that issue.
Also, the US government does do things I do not agree with. Bringing up a list of bad things the government does/has done and tying it into this, when there is little relation, does not help your cause.
There is a catch-22 situation of exposing government bad stuff. Most (but not all) government bad stuff is classified, not necessarily to hide the government doing bad stuff, but for other security reasons. If you really want more of this to come to light, support more political candidates that support greater government transparency. Texas Senator Ron Paul comes to mind, but before you blindly support him because his views on say US foreign policy and the economy align with yours, investigate the whole man and all his beliefs (he is extremely conservative. More so than any other Republican conservative).
Also you say "your country" so I assume you mean that you are not a US citizen. The problems of the US are best solved by US citizens, but unfortunately most of us can't be bothered to stop and think about our government.
In the last thousand years, until recently, there were no Jews in the Muslim world because all the Jews in those areas were slaughtered and persecuted even longer ago and Jews didn't move back in. Even the Muslim world has calmed its ways a bit in this last millennium.
This is a very common misconception. It is not true. Until about the beginning of the 20th century (1900 ad) Jews lived in the Middle East and in other Muslim countries in the area in relative peace.
Animosity between Arab and Muslim countries (Iran is a Muslim country but IS NOT an Arab country) increased greatly in the last century for a variety of reasons. The creation of the state of Israel and the handling of some of the non-Jews living in that reason prior is one of the issues. Israel has done what it thinks is best* to ensure the continued existence of the state of Israel, and as they still exist 60 years later, they have been successful so far. Israel puts its own interests above the interests of the region. Why should they do anything else? Why should any nation state do anything else?
*This includes maintaining a very strong military, which they have used to defend themselves from foreign aggression as well as to be aggressors in preemptive wars and doing preemptive military strikes that they felt were in the interests of Israel. Includes using assassination as one of their options. Includes developing strong alliances with countries that can help them (most notably the USA). Includes expanding their borders into areas that are strategically significant.
No amount of careful planning will ever replace dumb luck.