4. Results and discussion
4.1. Preliminary analysis The analysis started with the demographic (Table 1) and behavioral (Table 2) profile of the respondents. The demographic profile (Table 1) showed that the sample was relatively evenly split between males and females, and conformed to a similar age distribution as the U.S. general population (e.g., most respondents above 51 years old). Most respondents (44.7%) earned between 50,001 and 100,000 per year and had a Bachelor’s Degree or equivalent (e.g., 49.6%). The behavioral profile of respondents (Table 2) revealed that more than three quarters of respondents did not use biometric technology (76%), that they traveled relatively infrequently (approximately 80% traveled between one and eight times a year by air), and mostly for leisure purposes (50.7% exclusively leisure).