The US Government has taken further steps to tighten the rules for foreign H-1B visa holders, reportedly removing the ability for their spouses to obtain work permits.

Companies in Silicon Valley have ceased hiring employees from outside the US, with fears growing that moves to restrict immigration could make the hiring of outsiders tougher.

The head of a global technology services firm that has never availed itself of H-1B visas says it does so because the H1-B is not in the best interest of foreign workers.