 The European Court of Human Rights, referring to the European Convention on Human Rights, has shown in a number of indicative judgments that there are enforcement barriers to expulsion to certain countries, for example, due to the risk of torture.There are campaigns discouraging the use of the term "illegal immigrant", generally based on the argument that the act of immigrating illegally does not make the people themselves illegal, but rather they are "people who have immigrated illegally".In the United States, a "Drop the I-Word" campaign was launched in 2010 advocating for the use of terms such as undocumented immigrants or unauthorized immigrants when referring to the foreign nationals who reside in a country illegally.