WASHINGTON, March 31 (Reuters) - The Trump administration sought to put the scandal over its use of the Signal messaging app behind it on Monday, calling it case closed, even as the breach provoked bipartisan criticism and opened up divisions inside the White House. Press Secretary Karoline Leavitt told reporters at the White House that the administration maintained confidence in...

SAN FRANCISCO (Reuters) - Lightmatter, a startup valued at $4.4 billion, on Monday released two pieces of technology aimed at speeding up the connections between artificial intelligence chips. Instead of moving information between computer chips as electrical signals, Lightmatter's technology uses optical connections and what are known as silicon photonics to move the information using light. Mountain View, California-based Lightmatter...

SAN FRANCISCO, March 31 (Reuters) - Lightmatter, a startup valued at $4.4 billion, on Monday released two pieces of technology aimed at speeding up the connections between artificial intelligence chips. Instead of moving information between computer chips as electrical signals, Lightmatter's technology uses optical connections and what are known as silicon photonics to move the information using light. Mountain View,...

* J&J proposal would end lawsuits linking its baby powder to ovarian cancer * J&J's two previous attempts at a bankruptcy deal failed in other courts By Dietrich Knauth NEW YORK, March 31 (Reuters) - A U.S. bankruptcy judge on Monday rejected Johnson & Johnson's ( JNJ ) $10 billion proposal to end tens of thousands of lawsuits alleging that...