Wow, this thread is getting pretty ugly, and posts with a racist-slant.
" ... ramp workers from all corners of the World ..."
" ... size ceramic blade you could hide in a Dastar..."
" ... Osama Bin Laden ... checking ID ... "
Just because you a white and a pilot, does not give you the privilege to waltz thru security and customs/immigration.
Back on topic. It was airport security that noticed the knives, and called a higher authority to determine how to proceed next. It was the London Metro police that laid the charges and subsequent arrest. And here we are, lambasting the airport security workers. The police was just enforcing the law as they interpret it. Police has the authority and responsibility to uphold law, even if you don't agree with it. At court, the judge/jury will decide whether the law was broken, and decide on the appropriate punishment - if any.