Final answer:
The sentence that the author does not fully address later in the text is the one concerning employer-owned devices and the clarity of related cases.
Step-by-step explanation:
The sentence that introduces a point that the author fails to address fully later in the passage is "When the cell phones, computers, or touch pad devices are the property of the employer, the case seems clearer." This statement suggests there will be a further explanation or discussion regarding the clarity of cases when technology is owned by the employer, possibly touching on privacy issues or legal ramifications. However, the passages provided do not delve into the specifics of what makes the case 'clearer' when the devices are employer-owned, nor do they discuss the implications or policies surrounding this scenario. There is also no subsequent clarification on the differences in privacy concerns or rights when technology is provided by the employer as opposed to when technology is personally owned.