In what ways does America still take advantage of cheap immigrants labor to accomplish difficult tasks

Filling a Labor/Wage Gap is an advantage.

Temporary workers or those willing to execute a job at a lesser rate than others may be required by business owners. Immigrant laborers have been able to find work in this niche. They are willing to accept lower salary for the employment than other applicants are willing to accept. Although the job market for excellent people is competitive, many firms, even small enterprises, need to find personnel that meets their budget.

Advantage: Wider Pool to Find Best Talent

To find the best possible talent for any position, employers must sometimes look outside the normal channels for talent. This has led to an increase in work visas issued under the H1-B nonimmigrant visa that seeks to bring in the most knowledgeable people from around the world to work for U.S. companies. While this is a nonimmigrant visa, it allows foreign workers the legal right to enter and work in the United States. Many use this situation as a platform to eventually immigrate after establishing themselves in the U.S. workforce.

Advantage: Indentured Loyalty

Immigrant workers often must have a job to remain in the country lawfully. This means businesses get an employee with every reason to succeed and keep his job. This loyalty isn't the normal loyalty bred from a strong corporate culture and passion for the company's mission. Some would refer to it as being indentured to the company. Regardless of the reasoning behind the loyalty, the employee is motivated to show up for work, do a good job, and continue to meet performance standards to maintain gainful employment.

Disadvantage: Language Concerns

Immigrants were found only in specific immigration hot spots around the country. The U.S.-Mexico border has a lot of Hispanic immigrants. New York was a hub for immigration from around the world. These hot spots still exist, but the immigrant labor force is integrated in additional parts of the country. In some instances, the language barriers between immigrant employees and managers or customers are problematic. Business owners need to find ways to address this problem as immigrants make their way to America from diverse places around the world and speak languages that aren't common in most parts of the country.

Disadvantage: Legal Issues

Hiring an immigrant may have legal issues that the small-business owner might have to deal with. At the least, an immigrant files a Form I-9, Employment Eligibility Verification instead of a Form W-9 when completing payroll paperwork. Immigrants don't have Social Security numbers; they have a Tax Identification Numbers recorded on Form I-9. If an employee needs an H1-B visa, there are costs associated with applying for and maintaining the visa. There are also calendar requirements and quotas that affect application approval. For example, only 65,000 regular H1-B visas and 20,000 master's degree H1-B visas are issued annually.

Explanation:

the use of email to replace slower surface mail.