The biggest problem immigrants face in the United States is deportation. For many good things you do in this country, a serious mistake can put you in the doorway. The service in charge of carrying out this process in the country is ICE. By definition, deportation is the process of removing an immigrant from the United States for failing to comply with immigration laws. The reasons why an immigrant can be detained and deported are diverse. Although the most obvious is having entered the country illegally, there are other reasons that put you in deportation: