UBM’s security and defense industry show IFSEC has reported a 12 per cent visitor increase on 2010, signifying a tentative but marked recovery from the market difficulties of the past few years. The show, which ran from 16 to 19 May 2011 at the NEC Birmingham, brought 25,486 visitors pending an ABC audit. The visitor base included an increased number of specifiers, installers, enginee...