Snowden: NSA leaks fueled needed debate on spying

Former intelligence contractor Edward Snowden said Monday he has no regrets over his leaks about mass surveillance programs, saying they sparked a needed public debate on spying and data collection.

Amazon asks Supreme Court to block NY sales tax

Amazon.com Inc. is taking its tax fight to the U.S. Supreme Court, asking the justices to block a demand from New York authorities that it collect a sales tax on goods sold in that state.

Blocking infinity in a topological insulator

(Phys.org)—In bulk, topological insulators (TIs) are good insulators, but on their surface they act as metals, with a twist: the spin and direction of electrons moving across the surface of a TI are locked together. TIs ...

What do Biological Cells and Democracy Have in Common?

(PhysOrg.com) -- Scientists at the New England Complex Systems Institute (NECSI) and Harvard University offer a groundbreaking new perspective on how genes determine and regulate the functional identity of a cell. The study, ...

page 2 from 2