To simplify the expression \(10^6 \cdot 10^2 \cdot 10^{-8}\), we can use the properties of exponents. Specifically, when multiplying exponential terms with the same base, we add their exponents:
\[ 10^6 \cdot 10^2 \cdot 10^{-8} = 10^{6 + 2 - 8} \]
Now, let's perform the calculations in the exponent:
\[ 6 + 2 - 8 = 8 - 8 = 0 \]
So we have:
\[ 10^{6 + 2 - 8} = 10^0 \]
We know that any non-zero number raised to the power of 0 is equal to 1:
\[ 10^0 = 1 \]
Thus, the simplified expression is:
\[ \boxed{1} \]