http://www.tc.gc.ca/eng/aviationsecurity/page-147.htm
запрещенные предметы...
3. Objects with sharp points or sharp edges that could be used to cause serious injury, including
........Items designed for chopping, such as axes, hatchets and cleavers
............Ice axes and ice picks
................Razor type blades such as box cutters, utility knives, and safety razor blades
................Knives or knife-like objects of any length
..........Scissors with blades longer than 6cm as measured from the fulcrum
..............Martial arts equipment with sharp points or sharp edges
............Swords, sabres
возможно, у пилок для ногтей имеет значение длина?
вообще, разрешается:
Nail clippers: Carry On Baggage: Yes Checked Baggage: Yes
Nail files: Carry On Baggage: Yes Checked Baggage: Yes
поэтому, либо попался неопытный сотрудник, либо панкратик выдумал все.
не верю, чтобы его в Борисполе могли назвать "москалем".