Knives
<a href="http://www.thetimes.co.uk/article/0%2C%2C2-2002001575%2C00.html" target="_blank">Swiss allow army knives on jets</a> while <a href="http://www.boston.com/dailyglobe2/003/metro/Knife_in_shoe_leads_to_arrest+.shtml" target="_blank">Knife in shoe leads to arrest</a> in USA.