The Land of Israel

Here's a question that repeatedly arises: Given that we see some Jewish communities that by and large traditionally observed the Torah and its commandments, yet ceased doing so to a significant extent after they immigrated to the Land of Israel – was it worth it? There were great rabbis who said, prior to the Holocaust, that religious Jews should not ascend to the Land as long as its Zionist leaders were sinners and sometimes even heretics; perhaps they were right?

I have been looking for a specialty shampoo that contains oat bran. Someone found it in a very expensive store, and it does exactly what I want. One day, after showering, I noticed the label says that it is made in Israel! Does this mean that it is prohibited as Tevel?

The world, and many politicians, feel that a Two-State Solution in the Middle East is the only chance for peace. Without getting into the question whether we can actually trust our enemies and believe them that they may actually lay down their weapons, we must also deal with the question, what does Judaism say on this important topic? Both the Land of Israel and Peace are important Jewish ideals, so what should we do if the two conflict?

Why is the Torah reading in Eretz Yisrael differant than the reading in Chutz La'aretz? What does one do if he is travelling during this period?

I would like to buy a home in Yesha (Judea/Samaria) in order to make some money Is this appropriate, or should I assume that it is not a good idea, because it makes it harder for others to fulfill the commandment of settling the Land of Israel?

What if one's parents tell him not to live in Judea/Samaria? Is living there considered an extra important mitzvah, and therefore he should ignore his parents, or is it only a "beautification" of the existing mitzvah of living in the Land of Israel?

Someone told me that children of people who make Aliya are in a bigger danger of Leaving the Derech. If so, should I make aliya?