On September 21, Bloomberg reported that, in the wake of the turmoil sparked by the Trump administration's proposal to levy a $100,000 application fee on the visa program, the U.S. tech sector and other enterprises have swiftly issued warnings to their employees holding H-1B visas, advising them to steer clear of international travel. Tech behemoths like Microsoft, Alphabet (Google's parent company), and Amazon have alerted their affected staff to return to the U.S. by Saturday and to scrap any plans to exit the country. The White House announced on Friday that the new regulation would come into force on Sunday, and further clarified on Saturday that the fee would be applicable solely to new visa applications, leaving renewals and current visa holders unscathed. Nevertheless, questions persist over the precise implementation particulars, fueling confusion and alarm within the business realm.