i have been through enough security checks at malls and Hotels to know how to get in stuff that i want to without getting caught. they check thousands of people on a daily basis. you think they do a thorough job every single time? not really. my friend would always use the excuse dicky jam hai nahi khulegee at parking and the people there let him go after shrugs. no one checks for your shoe soles or your phone or wallet closely enough. if someone is serious carrying inside explosives, he should have little problem getting through security. these are tired old man sick of their jobs with no concern for your safety.