SPECIAL INVESTIGATION
US visa restrictions: As one door closes…
Nature 427, 190 (15 Jan 2004)

EDITORIALS
In praise of immigration
The United States is a nation of immigrants - and nowhere more so than in the lab. Yet officials of the federal government don't seem to recognize that the country's scientific strength depends in large part on foreign talent.
Nature 427, 181 (15 Jan 2004)

US visas: Postdocs in peril
Nature Materials 3, 75 (Feb 2004)

Prospects: Starting the brain gain
Nature 427, 267 ( 15 Jan 2004)

NEWS
Researchers rage at tightened restrictions on US immigration
Nature 422, 457 - 458 (03 Apr 2003)

EDITORIALS
Scientists and immunity to immigration
Nature Immunology 4, 929 (01 Oct 2003)

The risks of exclusion
Nature Neuroscience 6, 203 (01 Mar 2003)

NATUREJOBS FEATURES
Access delayed
Tight new security measures aimed at preventing terrorism mean that postdocs and students travelling to the United States need to make plans a long way in advance and expect delays, says Karen Kreeger.
Nature 422, 96 - 97 (06 Mar 2003)

New immigration laws affect US biotechnology
A host of new agencies, increased processing times and stricter enforcement of current regulations may hamper the hiring of foreign workers.
Nature Biotechnology 21, 713 - 714 (01 Jun 2003)

CORRESPONDENCE
Lack of trained security staff delays US visas
Nature 423, 115 - 116 (08 May 2003)