I worked at the site of this event many years ago and it really is nothing to get so worked up about. Have a look at the website to see which companies are taking part http://www.dsei.co.uk/exhibitor/exhibitor-list.aspx - you'll find that the majority sell radios, body armour, stretchers, mine-clearance technology, firefighting equipment, batteries, tents, education, etc. Nobody except the media and the protestors call this an 'arms fair'. That's not to say there won't be any weapons at all, but keep this in perspective. We have armed forces and so do our allies. We also have a big defence industry. In this country you can't just stroll into a shop and buy guns, etc. but there are plenty of countries where you can and I'm grateful that we're not one of those places - I'd much rather this sort of thing were confined to military circles.