No they're not, here's a few single edged sword types from Wiki -
backsword
sabre
scimitar
Japanese sword
Dao (sword)
Messer
Kopis
Falx
Falcata
Falchion
Scythe sword
That guy ^^^ is only 23!?
He must have had one tough paper round and I suppose delivering newspapers while full of Cocaine would explain why he looks done in.
A short Cameron themed playlist -
Papa's got a brand new pig's head - Pig Bag.
Pig's mouth strikes again - The Smiths.
Pig-wam-bam - The Sweet
The great pig in the sky - Pink Floyd.