Fucksake Israel, ease the blockade. No sane person would say allow weapons in to attack Israel, and checking for weapons should remain - but let the rest in. Just do it.
Tony Blair is hopeful he can bash something out over the next few says that would allow this. Let's hope his optimism isn't misplaced.
Western style democracy should always seek the high ground where possible ethically and morally whilst balancing national interest and security. They go hand in hand - to a point.
The most moral or ethical Western democracy is still going to be a target for Islamic terrorism, but less so. I don't mean pansy ethics either - ones with balls, i.e. freedom of speech, the right to offend religion etc.
Update: The Israeli cabinet has voted to ease the land blockade