A:	because they're a danger to everybody else.
ʌ WORD_BOUNDARY b ɪ k ʌ z WORD_BOUNDARY ð eɪ ə ɹ ɹ WORD_BOUNDARY ʌ WORD_BOUNDARY d eɪ n d̠ʒ ə ɹ WORD_BOUNDARY t ʊ WORD_BOUNDARY ɛ v ɹ ɪ b ɑ d i WORD_BOUNDARY ɛ l s WORD_BOUNDARY