Immigration law is a dynamic and challenging area of law impacting tens of millions of people in the United States and around the world. Immigration lawyers work on legal issues impacting immigrants, non-immigrants as well as their family members and employers. Some immigration lawyers represent people attempting to obtain visas, avoid deportation or gain lawful permanent residence. Other immigration lawyers work for the federal government. Fully five branches of the federal government are involved in immigration affairs, including the Department of Homeland Security, the Department of Justice, the Department of State, the Department of Labor, and Health and Human Services in a variety of capacities and immigration law is an excellent entry point into federal practice. Immigration law also intersects with international law. Immigration lawyers work with domestic law, but also with international (e.g. Refugee and Torture Conventions and Trafficking Protocol) and comparative law (immigration laws and policies of other countries and bi-lateral agreements). In fact, one of the only ways to practice international law in the United States is within the immigration context.