On this week's show presented by Aleks Krotoski, we meet artist Matthew Plummer-Fernandez to discuss his work in 3D print technology and the recent release of his free 3D print encryption software Disarming Corrupter. Devised as part of his art practice, the encryption software immediately opens up a very interesting debate around the positives and negatives of wide distribution of files to print 3D objects, from low-cost prosthetic limbs to guns.
Aleks is also joined by Guardian telecoms correspondent Juliette Garside to discuss the share stampede as Twitter threw itself on the markets. Also Guardian tech writers Alex Hern and Samuel Gibbs discuss the bounce back of the illicit goods trading site Silkroad as Silkroad 2.0 and the Guardian's five out of five review for Google's Nexus 5 handset.
