Although an airline is not an insurer of a passenger's safety, it is responsible for even the slightest negligence on the part of its employees, and is required to do all that is reasonable under the circumstances to prevent injuries from happening.
About Words in Color. This approach to teaching reading, writing, and spelling is called Words in Color because of the color-coding system which transforms English into a phonetic language, and draws attention to the ambiguities of our language's sounds and spellings. Videos.
One thing to note is that certain varieties of the English language (i.e. British English, Canadian English, etc.) use the letter U in words such as colour, labour, valour, etc.; however, in American English the letter is not used and said words mentioned are spelled as color and so on.