2008_10_polcars.jpgNYC the Blog learned that an after school program in East Harlem canceled today's programs "due to advice from the NYPD and school officials." The 25th Precinct "has been receiving leads them to believe their will be heightened gang activity by the Bloods Gang today in East Harlem, between the hours of 3-5pm." And over in Brooklyn, GerritsenBeach is calling tomorrow "D-Day", remembering the mischief on Halloween 2007: "A large crowd of teens pelted vehicles with eggs. It was like a firing range; buses were hit on both sides as they drove by." The patrol cars were also hit. The NYPD's website only reminds parents about trick-or-treat -related safety tips (PDF).