Charles Kestenbaum [letters, March 4] assured us that, since he has worked for more than 40 years with Arabs and Muslims, he can vouch for the existence of a powerful, influential Israel lobby. There is, of course, an Israel lobby, just as there is a lobby for virtually everything under the sun. But if the Israel lobby cannot keep former senator Chuck Hagel from becoming defense secretary, how influential is it?

Sol Schindler, Bethesda