If the concern is Haphephobia, then yes, you are likely to pass through all screening without being touched. However, be aware that this is not guaranteed.
The biggest risk is when entering the terminal because if you set of any alarm, either in the mag or scanner, it will have to be resolved, usually by a pat-down of the suspected area.
The reduce this possibility, be sure to wear no metal or dense items, including jewelry, while passing through TSA line. And, be sure your clothes are dry as water spots confuse the image processor.
You would only be touched by CBP if sent to Secondary Screening and they suspect you may be concealing something on your person.
You will be physically searched if drugs are suspected and possibly for currency. Much, much less so for an Agriculture or Duty violation.
So, carry no food products or illicit drugs through Customs. Nothing that would give the detector dogs reason to even look at you.
Country of origin for the arriving flight is in no way ana factor in screening methods due to the prevalence of drug trafficking from certain regions.