CNN Starting Point April 16, 2013 12:08:00
Were small. initial tests shod no c-4 or other high-grade explosive ed i t attack were crude ages he fact that two bombs were used there, ia cta level of sophistication. having made these bombs befo, it's not easy you can't just gett on the internet, make two of these bombs go off fairly closely tother. sobo h se peence, somebody practiced >> repte srces tell cnn that one, possiblywo unexploded devices also were found. potential treasure troves of clue about who may have made the bombs. >> and other sources tell us that at least one of bombs, you saw the smoke from it, light coloreecse of powd...
Source: archive.org