Scientists are focusing on a relatively small number of human genes and neglecting thousands of others. The reasons have more to do with professional survival than genetics.
The company said the department requested documents after its chief executive, Elon Musk, said he had “funding secured” to take its stock off public markets.
In a rural Texas county, lidar sensor technology is being tested as a way to spot illegal intruders from Mexico. That use could divide workers in Silicon Valley.