Mmmmm. Binary bombs. Ask an expert. How about a former British army guerrilla explosives expert(not the defusing of....the construction and implementation if IED's) who also happens to be the ex head of security at a major UK airport.
He gleefully informed us that aprox 4 litres of material would need to be carried through security, including high strength Hydrogen Peroxide..excuse me sir...would you mind having a swig of your water please.....
So...once aboard.....unnoticed(carrying your 4 litres of separate liquids) you sneak into the loo...oh sorry ...I forgot the mixing bowl...and commence the bomb construction, which involves very precise mixing of chemicals at exact proportions in conditions of a narrow range of temperatures and little or no vibration or disturbance for a lengthy period of time.
As my happy expert observed with some satisfaction"there are quite a few folk in Afghanistan with no fingers because they cocked it up...".