Blog Heap of Links for the day 4 July 2016

…“With Halos, one can now post a giant warning sign for those contemplating violence. Halos’ maps illustrate not only where the good guys are (or are not) but how many are present. We believe that this will create a ‘halo’ effect of safety for our users and deter criminals where there are high concentrations of gun-carrying citizens.”…

…On this day in 1776 the Declaration of Independence was formally adopted by the Second Continental Congress in Philadelphia.