Union
$$A \cup B =$$
{ analysis, collection, dissemination, feedback, friend, handmaid, master, praiseworthy, processing, requirements, sister, undesirable, wasteful }
Symmetric Difference
$$A \ominus B =$$
{ analysis, collection, dissemination, feedback, friend, handmaid, master, praiseworthy, processing, requirements, sister, undesirable, wasteful }
Cartesian Product
$$A \times B =$$
{ (friend, analysis),
(friend, collection),
(friend, dissemination),
(friend, feedback),
(friend, processing),
(friend, requirements),
(handmaid, analysis),
(handmaid, collection),
(handmaid, dissemination),
(handmaid, feedback),
(handmaid, processing),
(handmaid, requirements),
(master, analysis),
(master, collection),
(master, dissemination),
(master, feedback),
(master, processing),
(master, requirements),
(praiseworthy, analysis),
(praiseworthy, collection),
(praiseworthy, dissemination),
(praiseworthy, feedback),
(praiseworthy, processing),
(praiseworthy, requirements),
(sister, analysis),
(sister, collection),
(sister, dissemination),
(sister, feedback),
(sister, processing),
(sister, requirements),
(undesirable, analysis),
(undesirable, collection),
(undesirable, dissemination),
(undesirable, feedback),
(undesirable, processing),
(undesirable, requirements),
(wasteful, analysis),
(wasteful, collection),
(wasteful, dissemination),
(wasteful, feedback),
(wasteful, processing),
(wasteful, requirements) }
Failure in the intelligence cycle