I’ve been stopped, searched and grilled at length twice now on international travel for “not having enough luggage.” I’m talking like a two hour detention. Example, I travel in Europe for 3-4 weeks with one bag like this, link below. Is there any way around this inconvenience? Any tips about what to say when first stopped? I tried a slightly bigger shoulder bag but it did not help. Thanks! I need suggestions.

http://www.ebags.com/products/view/ZoomColorsViews.cfm?fuseaction=imagePop&ModelID=95956&ipsid=95956_1_5&PhotoLink=2&view=dxlrg?_site_id=20