According to Pentagon, the new military hobby is tracing Iraniens in Iraq?

That is like tracing Mexicans in the USA, or tracing you used tea bags from the last 10 years through garbage piles? Have they completly lost their mind? Iran and Iraq have a long, lonely border and then people look exactkly the same. If we, in our organized society, have between 10 - 20 million illegal immigrants, what sense does following them in Iraq make? Sounds to me like another way to triple military budgets. Waht do you think, am I of the rocker?