Once granted a waiver, you can obtain a visa (usually one year at first). As a holder of a waiver you can expect long delays in secondary processing at the US border, even with a visa in your passport. Strangely, an exception to this is purely political offences..
Most simply explained, a constructive trust is an equitable remedy imposed to prevent unjust enrichment (see Simonds v Simonds, 45 NY2d 233, 242 [1978]; Sharp v Kosmalski, 40 NY2d 119 [1976]).
A charitable trust is an irrevocable trust established for charitable purposes, and is a more specific term than  charitable organization .haritable remainder trusts are irrevocable structures established by a donor to provide an income stream to the income beneficiary, while the public charity or private foundation receives the remainder value when the trust terminates.