Can dual-citizen Americans vacation in Cuba? If a U.S. citizen who has another citizenship enters Cuba using that other citizenship and spends his vacation there, will he run afoul of U.S. law (embargo of Cuba)?
The only people the law does not apply to are " persons licensed by the US Treasury Department’s Office of Foreign Assets Control." http://www.visitcuba.com/travel-guide/travel-tips/special-note-to-usa-travellers/ If you have close family there the license is not needed. If you qualify to travel on a general license for family travel, you do not need to seek permission from OFAC. However, it is a requirement of the general license that you be able to document, if asked, how you qualify under the general license. There are also special permissions for certain groups. There are 12 categories of people who are allowed to visit including close relatives of Cubans, academics, those traveling on official government business, those on humanitarian or religious missions, journalists and people on accredited cultural education programs. Those rules apply to people with dual citizenship. New rules are now in place, that allow you to visit under certain circumstances considered to not be simple tourism. https://www.forbes.com/sites/alexandratalty/2018/04/23/yes-you-can-still-travel-to-cuba/#34139656378d
There are certain requirements of Statehood according to the Montevideo Convention on Statehood of 1933, which is just a codification of international customary law: a permanent population; a defined territory; government; and capacity to enter into relations with the other states. Is it "legal" to buy a piece of land and claim it to be another country than before(either inventing a new one or migrating it to an already existing one)? According to international law, it is. Sure. But just because you say something is the case, doesn't mean it is. Always. Sometimes it is. But for present purposes, let's say that if you found an uninhabited island and said that you were a country, that wouldn't be the case - nor if you bought it from a man living on it. If you found some land that belonged to another country and decided to claim it as that of an existing country, then it would depend on the specific circumstances. That's exactly what happened to the Krim island in the Ukraine(now Russia maybe?), right? I don't think so. As far as I know, the annexation of territory isn't considered sale. In any case, the ownership of this land is still under dispute. So, if it's possible without the influence of these international institutions, trying this in an area with their influence would be easier, right? If trying this means declaring some land you have purchased to be a new sovereign state Nope. You probably still don't meet the requirements for statehood. If trying this means the acquisition of some land by an existing sovereign state Maybe. Probably not. The Montevideo Convention requires that statehood not be gained through force; while member states' interests may be greater where they are more invested, the requirements for acquisition of territory are the same no matter where you are. What would prevent me from creating my own nation? Money, defensibility, recognition, the fact that you probably don't own any land that you "buy" (depending on the jurisdiction and real estate system), the fact that you generally can't unilaterally declare yourself a sovereign state.
In the US it is not a crime to be in the country illegally. As a general rule, it is not a crime for a removable alien to remain in the United States. Arizona v US So it's illegal, you get a state induced consequence (deportation) but it doesn't make you a criminal e.g. you don't go to jail for it. I have no idea if that's what's going on over there but it's a plausible explanation.
Legally there is no problem. What you say is protected speech under the 1st Amendment as long as it is either true or a matter of opinion. However Ron Beyer's comment is a good one; while legal this sounds very inadvisable. You would be far better off hiring a lawyer. The Mr Dicks of this world make money from the widespread fear of legal action. He will probably fold as soon as he sees a letter from a lawyer threatening a lawsuit. Until then stalling doesn't cost him anything so he will carry on doing it. BTW, don't delay. I don't know about the US, but over here in the UK there are a number of ways that people like Mr Dick can make it hard to collect. Don't give him time to play shell games with his assets.
Is blocking certain people while allowing everybody else to view some content discrimination Yes. and violate anti-discrimination laws Probably not, at least in the US. There is no federal law prohibiting "discrimination" in general. There are specific laws regarding discrimination against certain groups in certain contexts. They would probably not apply to an individual determining who is allowed to view their social media posts. That said, there are some specific contexts where this might be illegal. They would generally involve non-personal use of the account. The courts recently ruled that Donald Trump may not block people on his Twitter account, because he's using it in an official presidential capacity rather than just his individual capacity. Also, racial discrimination in housing is illegal, so if you're selling your house and you block all black people from viewing your house photos, that would probably be illegal as well. Also is not being able to consume information available on a public platform a violation against right to freedom. I'm not sure what you think a "right to freedom" would entail. But I don't think you have the right to demand that a person allow you to access their social media accounts.
The Secret Service is primarily concerned with protecting the people and information they oversee, not enforcing laws. They have the power to arrest someone for any unlawful conduct, but unless a drug user is presenting as a threat to a protectee, they are unlikely to be arrested by the Secret Service. More likely the Service would simply escort the person off the premises and refer the matter to the DC Metro Police to handle. Edit: Such a case would not be turned over to the US Capitol Police (as originally written) It would most likely be referred to the DC Metropolitan Police Department.Corrected my answer above.
It's not regulated by international law. Depending on the laws of the intended destination country, it may be the case that none of the members of the family are permitted to enter, or that they can enter, but only two can enter as a "couple", while the others are legally completely separate (or even excluded from the country). According to one blog, at present in the United States, a foreign national must actually intend to practice polygamy in the United States to be ineligible for an immigrant visa. The current law does not prevent a polygamist or someone who practiced polygamy in the past or expresses a belief in polygamy from being eligible for an immigrant visa. But aliens coming to the United States to practice polygamy are barred. Before 1990, there was a law on the books by which someone who merely "advocated the practice of polygamy" could have been barred. This question has been answered on Quora for the U.S., again for the U.S. (where the question asked about "US and EU"), and for Canada. Basically, the whole family can't legally immigrate as a unit. However, determining who is the "real" wife, if any of them, would depend on the facts of the case, the specific laws of the target jurisdiction, and the purpose of the determination. It could very well be that every one of the other marriages would void a new marriage in the destination country and entitle the children to child support, but none of them would entitle the wife to a spouse's visa or the father to visitation rights after a purported divorce. See also this answer about whether it's possible for a married immigrant to commit bigamy by entering the United States pretending to be unmarried. Sure there are people who try, and it's more likely to succeed with the cooperation of the foreign spouse(s), but it's against the law and can be grounds for deportation, imprisonment, annulment of the second marriage, or exclusion of any polyspouse who is outside the country.
You are subject to the laws of the jurisdiction that you are in. However, some of the laws of the jurisdiction you reside in or are a citizen of have extra-territorial applicability, so you have to comply with those laws too.