In the early 21st century, persecution of Christians area increased. In most countries they are required to obey Islamic "Shari'ah" law. In some countries, notably Egypt, political approval is required for the construction or renovation of a church - such restrictions are not present in the construction of Mosques. Countries in the Arabian Gulf, most notably Saudi Arabia, do not allow for the construction of churches or the public practice of Christianity - although that is slowly changing in progressive areas like the UAE. Coptic Christians in Egypt continue to face significant discrimination in the workplace and have a hard time reaching to the upper echelons in universities, corporations, and government offices.