Microbeam radiation therapy uses a lattice of kilo-voltage x-ray âmicro-beamletsâ. The beamlets are 100-300 microns apart (100 microns is roughly the width of a human hair) and each beamlet is 10-50 microns wide.
The National-Security-Law Expert Who Blocked Trump's Travel Ban The former federal prosecutor and deputy counsel to the Department of Homeland Security writes that the prohibition violates the Constitution.
Highlights from Obama's immigration plan. There is serious disagreement over the legality of Obama's move. The White House pointed to the actions of previous presidents, including Republicans Ronald Reagan and George H.W. Bush, who issued executive orders granting legal status to migrants.