caution required at river crossings

G,day all,
Another tragic story to come out of west australia tonight when a Jeep cherokee was pushed downstream by the current during a river crossing resulting in tragedy for the two kids in the back seat.For many people who havn't crossed too many rivers or streams it makes you wonder how much resistance is on a five metre vehicle when the river is flowing even moderately.Taller and narrow vehicles like troop carriers may be more at risk.Should windows be down during such a crossing or is this an admission that i might lose the vehile here as its risky.If in doubt do you not cross or just test your insurance if it doesn't work out.If in a convoy who goes first if its flowing.So many factors come in such as flow rate,weight of vehicle,vehicle lift etc which make river crossings areas of high caution.

mark