Liars have a difficult time saying "I told the truth" or "I didn't lie." Lying is a deliberate attempt to deceive someone. If somebody didn't lie and they are questioned about it, they can easily say "I didn't lie" or if they are asked if they told the truth, they can easily say "Yes." However, when Hillary Clinton is asked "Have you always told the truth" she responds, "I've always tried to." What does that mean, 'tried'? Tried means attempted but failed, such as "I tried to mow the lawn but it started to rain", or "I tried to deposit money in the account, but the bank was closed." In other words, what you tried to do didn't happen. So we have to question why Mrs. Clinton cannot simply say "Yes." She also says, "I've always tried to, always, always." When she says that, she shrugs her shoulders, which is a sign of uncertainty, and also shakes her head "no" subtly which contradicts what she is saying. Pressed further by the interviewer, she says "I don't believe I ever have, I don't believe I ever will." Again, each time she shrugs her shoulder in uncertainty and her language reflects uncertainty as well. As investigative interviewers, and as I teach in my training courses, our goal is to get the truth. When we see evasive language or conflicting verbal/non-verbal behavior, those are flags for the interviewer that something in not right, and that is the area to dig into during the interview.