<prompt> Translate the following text to EnglishWahamiaji wengi ambao wamekuwa wakazi wa kudumu wa kisheria kama Wafanyakazi Maalum wa Kilimo SAW hawana rasilimali za kuleta familia zao zote Marekani, kwa hivyo wahamiaji hawa pia wanaendelea kuja Marekani kama wafanyakazi wa pekee na kurudi Mexico wakati wa ukosefu wa ajira.  <response>: Many aliens who became lawful permanent residents as Special Agricultural Workers SAW do not have the resources to bring their entire families to the United States, so these aliens also continue to come to the U.S. as single workers and return to Mexico during periods of unemployment. 