The U.S. today began accepting H-1B visa applications for the next fiscal year, with heavy demand expected. The visas will likely all be claimed by end of this week, and a major share of the H-1B visas will go to firms that use visa holders to displace U.S. workers. U.S. Citizenship and Immigration Services (USCIS) data, provided to Computerworld, is very clear about who are the largest users of H-1B visas: Offshore outsourcing firms.