FROM John Biggs
3D Printing and DIY Guns Three-D printers produce objects by spraying thin layers of plastic, metal or ceramics that build into shapes. Industrial companies use them to make parts. Gun components have been made that way and used in guns that successfully fire bullets. Now a law student in Texas has set off a raging controversy with plans to completely print a functional weapon and release the specifications free on the Internet. The Wiki Weapon project raises the possibility of a convicted felon making a gun without needing a permit or a kid in the bedroom making a gun while parents think he or she is "playing video games on line." John Biggs is East Coast Editor of Tech Crunch .
Mixed Messages from US diplomats on the new hard line on Syria Since President Trump's surprise retaliation against Syria's use of chemical weapons, Bashar al-Assad has used the same airport to launch conventional attacks on his own people. It's not clear what the US, its allies — or Vladimir Putin's Russia -- plan to do now.
Will the march for science politicize objective research? Protesters are gathering all over the country for tomorrow's Earth Day March for Science. Since President Trump has proposed massive cuts in basic scientific research, will the movement be perceived as partisan politics — whether scientists themselves like it or not?