How secure do you feel?

http://www.nydailynews.com/front/story/290785p-248890c.html
"After the first shutdown, transit workers found a 2-foot-deep hole at the bottom of a manhole that breached the thick subway tunnel's concrete ceiling on Park Ave. South near 33rd St., officials said.
"We do not know when this hole was dug or by whom," said Fleuranges, who added that service was expected to be normal this morning."