What to do when an inspector misses stuff?

Heres something I looked at :
What's The Difference between a Home Inspection and Home Warranty Evaluation?
Some inspectors -- whether hired through real estate agents or the homebuyers themselves -- don't really perform a complete home inspection at all, but rather what's known as a "warranty evaluation," and the difference is significant.
In a nutshell, a warranty evaluation usually takes under an hour, only covers basic elements that are covered by the home warranty such as the heating/air conditioning system and other built-in mechanical systems.
Whereas a real home inspection consists of a full comprehensive evaluation of virtually every system and component of the home, including major appliances, roof, structure and utility systems, and includes a complete, written inspection report.
A licensed home inspector is also required to carry a minimum of $300,000 in Errors & Omission (E&O) Insurance, which protects both client and real estate agent in case the inspector inadvertently misses or omits a major defective system or component from his inspection report.
When selecting a home inspection service, make sure that you are, indeed, getting a full inspection, and not a simple warranty evaluation. The difference could mean potential savings of thousands of dollars in repair and maintenance bills over the long term.
Recently, the Louisiana House of Representatives passed H.B. 176, which clearly defines what a home inspection entails. A complete copy of the bill is available at http://www.legis.state.la.us/leg_docs/03RS/CVT3/OUT/0000KORI.PDF