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Easier to Stay

Two new bills have been introduced in the US Senate that would make it easier for foreign students studying science, technology, engineering, and math to stay in the US after they graduate, reports ScienceInsider. One bill, introduced by John Cornyn (R-Tex.) would allow graduates from institutions receiving $5 million or more in federal research funding to claim permanent residency, while the other bill, from Chris Coons (D-Del.) and Lamar Alexander (R-Tenn.), world create a new type of visa for STEM graduate students, which could translate into a green card when they find a job. ScienceInsider notes that similar bills were introduced last year, though did not move forward. "We haven't seen any evidence that they are getting ready to move [a bill]," says Barry Toiv from the Association of American Universities. "But what's important right now is less the details than that Congress may finally be trying to address the issue."

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.