Speaking to Daybreak about the court battle between relatives of soldiers killed in Iraq, and the MoD, Army Captain Patrick Hennessey said it "is right the most senior judges are making these decisions".
Families will today ask the UK's senior judges to rule that they can bring damages claims against the Government, under the human rights legislation.
He added that the questions being asked this week were "complicated and profound".
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The storms that struck Texas and Oklahoma late on Tuesday brought tornadoes, tennis ball-sized hail and powerful winds.
Samantha Baldwin, 42, and her sons Louis Madge, nine, and Dylan Madge, six, haven't been seen for two days.
A spokesman for the UK Coastguard said it was coordinating a search operation in the Caernarfon Bay area of North Wales.