As Imran Khan says in an interview on TV, ball tampering is the 'oldest' trick employed by cricketers to 'gain' advantage.
It was being used by most everyone even before his! era.
So, why this much hue and cry on this incident of Pakistani bowlers doing it ? Why pick them 'alone', for them to be 'maligned', for them to 'thrown mud on' in mass media in-front of most everyone in the west or perhaps the entire world ?
There's a clash of civilizations here, that is showing up 'very' 'clearly'.