samer hassan, active student and graduate columbia university in america, mr. hassan, since the beginning of the war against gaza, we have witnessed many student rallies and protests, which led to the change of the presidents of several important universities , for example in harvard and pennsylvania, with the reaction of the american authorities, and now, in particular, the attack of the american police on the campus of columbia university in new york we have arrested more than 100 students at the same time dozens of students were arrested at new york university's stern school of business and yale university. why do you think that after the pressure of the american authorities on the presidents of the universities, they are now using police forces to suppress the protesting students have arrived. thank you for inviting me . i have to say that i graduated from columbia university in 2020 and none of these events are new, and these events have happened before when i was studying at this university in 2020. we protested a decision again. columbia university offic