Sentence:  Like vampires, the ang moh crowd comes out at night, dressed in their best shirts and armed with plenty of tax-free Singapore dollars to woo those local darlings tragically struck down by the <WSD>Pinkerton syndrome</WSD>. Like the character in Madame Butterfly, they are somehow lured by the attraction of drunken voices and the possibility of a fat wallet. 
Meaning of the word marked with <WSD> tags:  The tendency of some Asians to regard Caucasians as superior or more desirable, especially where marriage or relationships are concerned.