article_snippet.sent: According to an ACLU statement, The Transportation Security Administration agents grabbed Singleton's hair, which was styled in tightly-wound 'sisterlocks,' and proceeded to 'squeeze it from top to bottom' at Minneapolis International Airport.
article_snippet.sent: Singleton's hair was patted down again two weeks later during a layover at Minneapolis International Airport and, once again, nothing was found.
article_snippet.sent: An agency spokesman later told CNN that the 'advanced imaging technology machine' only shows 'an outline of an individual' that was 'the same for every single person'. '
article_snippet.sent: If the hair area is highlighted, the 'advanced imaging technology machine' may have picked up an anomaly or a possible threat in the head area', such as bobby pins, hair and extension clips, or head wraps.