1
Food Crops
2
Disaster
3
Evolution and Migration
4
Petroleum Alternatives
5
Time Efficiency
6
Ancient Life
7
Computers
8
Energy
9
Memory
10
Spirituality
11
Illness
12
Surgery
13
Ghosts
14
Anthropology
15
Social Inequality
16
Expertise
17
Military Operations
18
War and Conquest
19
History
20
Financial Systems
21
Wealth and Social Class
22
Personal Property
23
Employment
24
International Trade
25
Politics
26
A Reasonable Doubt
27
The Police
28
Investigating Crimes
29
Government Corruption
30
Crimes at Sea
31
The War on Drugs
32
Family Relationships
33
Friendship
34
Passion
35
Negative Emotions
36
Social Rebels
37
Painting and Sculpture
38
The Written Word
39
Entertainment
40
Risky Fashions
