The National Gallery of Art is suspending its school tours for the next academic year as part of a general reevaluation of its educational programs. The guided tours served 34,000 students last year.
BTW, IMHO "Rusty" Powell, currently head of the National Gallery of Art, practically destroyed the Los Angeles County Museum of Art during his tenure there. So this kind of destructive decision by his staff isn't surprising. The only surprising thing is that there hasn't been more of an outcry from Congress on this one.
But of course, who in the "arts community" or the "education community" actually cares about DC-area school children learning about Renaissance Art?