MINEFIELD

[noun] [C] - an area of land or water which contains mines (= bombs), or (figurative) a situation or subject which is very complicated and full of hidden problems and dangersMuch land is still unusable because of the cost and danger of clearing minefields.(figurative) The judge said that the case had uncovered a legal minefield.(figurative) The report is an attempt to steer a course through a minefield of ethical problems.