anti-semitism, and the work of course now begins, or probably began at the beginning of this crisis between u.s. and uk officials to look at things like communications, travel history, to work out whether or not this was a lone figure acting on their own or part of some wider plot. and were there any elements that plot may still be a threat around? i have to say listening to the coherence of akram in that recording of him in the synagogue and other suggestions about how sophisticated or unsophisticated frankly this plot was, that may point investigators toward what his family is suggesting, there could be mental health issues here. but certainly all efforts now being put in by uk and u.s. officials to work together to get to the bottom of this. and i understand from our colleague josh campbell that u.s. and uk officials at this stage aren't seeing many traces of akram in their data bases in terms of somebody they already had on their radar. but even president joe biden