White House says U.S. needs H-1B visas to avoid 'competitive disadvantage'

President Barack Obama has so far reversed a number of actions taken by President George W. Bush -- on embryonic stem cell research, species protection and medical research -- but his administration has so far shown no interest in reversing a Bush-approved rule to increase the amount of time foreign nationals with engineering, science and other technical degrees can work in the U.S. on student visas from one year to 29 months that has drawn the ire of H-1B opponents.

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